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#41
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"Better" is such a relative term. It really depends on the individual. What is for certain though is that points are very simple, with less to go wrong, and it doesn't get more simplistic than that.
In that sense, it is better, in terms of simplicity. Not for everyone these days, especially the youngins' that didn't grow up with them. As long as you have a good distributor to start with, (and I haven't had a problem finding them) they are very trouble free. As far as the capacitive boxes go, they have good and bad points. I've found that using them on our daily drivers up here at 5000 feet elevation has helped to keep the plugs cleaner when putting around town, since I tend to keep the carbs a little on the fat side for the lower elevation changes we see. The rev limiter is just a nice bonus. Otherwise, I probably wouldn't run one. There are a lot of different scenarios out there that dictate what the end user sees as beneficial. So I don't knock it one way or the other. Hell I've got 2 cars here with full electronic complete Billet MSD setups in them and they work just fine too. So I'm not bias either way, I just prefer not to have that stuff on our daily drivers and much rather prefer the "simplicity" of points for something we have to rely on day in and day out. |
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#42
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+4 on the points, just make sure if you go that route to get a quality set. NAPA still stocks good points as well as ACCEL. They may very well be the same parts in different packaging.
If you can find NOS GM grab them. Stay away from parts store junk, the rubbing blocks are made out of butter.
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68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
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#43
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Well for now I'm going to try the 8528 msd dist and we'll see how it goes. I don't use any other type of ignition box. I've still got the original dist that was in the gto if I ever want to go back.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007 (cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD 1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86' |
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#44
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going bandit-Reynolds style |
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#45
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Yes,,,,no ballast or ballast wire.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007 (cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD 1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86' |
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#46
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Just an FYI, you can change that cap to the points style with female connectors if you wish, and look more stockish. |
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#47
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Toyota, just about the most reliable manufacturer out there ran points triggered CD ignition for years. Without multiple sparks. Points went 100K. As long as you are not running over 8000 RPM and - 1% of Pontiacs are, points with CD are the way to go. The old iron distributors for whatever reason wear very well. Not seen a worn out one yet. There is no denial involved. I have done back to back tests at the track with the exact same curve on 2 distributors set up on the same machine. One points, one electronic, both with 7-AL2. Same ET,MPH. Sold electronic stuff. I have come to the conclusion there is no extra power to be had in any ignition system, points, electronic other than a crank trigger which has been shown to gain 7 HP on a dyno. (Ace at PPR did the test) Run what you want. IMO simple is best. |
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#48
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007 (cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD 1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86' Last edited by scott70; 05-25-2021 at 08:57 PM. |
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#49
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Ive been reading the 8528 instructions online. I believe my dui dist has about 18 initial and 32 total...all in at 2700 rpms
Anybody have a spring/stop bushing set up that would be good for my car with the msd ? Im assuming to take out the blue stop bushing and use the black one.Still want 32 total and I guess I should be atleast 14 initial? I do like the rev limiter,,,,i could of used that at the track the other night when I pulled the shifter out of 1st at WOT. I think I caught it quick but Im sure it revved higher than I like. Anytime in the past when I was messing with timing curves I would just put the springs in I wanted,,,,like it totaled at 2800 rpms and I would set it at 32 total. I never payed attention to initial.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007 (cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD 1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86' Last edited by scott70; 05-25-2021 at 10:13 PM. |
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#50
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If I remember right you'll probably want to try the next bushing down and I think it's blue. |
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#51
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I found the paperwork that came with the dui dist back when i bought it. It says 22 degees at 2600 rpms. I read 18 initial at 800 rpms and 32 total which doesnt add up if Im reading it right. Im assuming that if I lowered the idle more the initial would lower too.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007 (cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD 1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86' Last edited by scott70; 05-26-2021 at 08:11 AM. |
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#52
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Use the black bushing and test what it delivers for mechanical and set your initial to get 32 total.
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1967 Firechicken, 499", Edl heads, 262/[email protected]" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. [email protected] mph with a 1.45 60'. Still WAY under the rollbar rule. |
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#53
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Same with triggering a CD box with a points distributor. Sounds great, but I wouldnt know if the points distributor was too worn to trigger correctly. That uncertainty is probably what drives people to new parts and just dealing with possibly chinesium failures. Also, from personal experience with my old Willys Jeep. It can be hard to get good points now.
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1967 Firebird 462 580hp/590ftlbs 1962 Pontiac Catalina Safari Swapped in Turd of an Olds 455 Owner/Creator Catfish Motorsports https://www.youtube.com/@CatfishMotorsports |
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#54
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It sounds like what I figured though, the blue bushing would likely get you close to where you were as far as your old timing figures go. Should put you somewhere closer to 15 initial if you set your total at 32 degrees. |
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#55
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I switched to Progression Ignition HEI last fall and have to say it’s probably the best money ever spent on an engine component. Rock steady timing based on MAP and RPM that’s infinitely adjustable (even on the fly). I set up a cold start table and no longer need to baby sit the throttle as it warms up. I also set it up to increase timing by 3 degrees when shifting from Park to Drive so the RPM transition is smooth as silk. All components are high quality and install was pretty much drop in plug and play and no I don’t have any affiliation with this company.
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#56
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007 (cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD 1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86' |
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#57
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I currently run a Pertronix converted points distributor on my 428 with a Crane Fireball ignition box. That said, I’m beginning to have an issue of occasionally dropping a cylinder or two. I have a Performance Distributors DUI small cap HEI (called their Tri-Power HEI) that I’m going to swap in.
I cannot give any recommendations for MSD products as I had a dead “ready to run” distributor right out of the box on my 71 project.....not impressed.
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Regards, Leigh Pontiacs I’ve owned…. 1960 Laurentian 283 1963 Laurentian 283 1976 Trans Am 400 1977 Trans Am 400 1951 Chieftain Flat head 6 1967 Firebird 400 convertible 1967 Firebird 400 coupe 1979 Trans Am 403 1971 Formula 455 (clone) 1969 Firebird 350 1968 Firebird 428 manual. Sydney, Australia |
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#58
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Electronic stuff is like that. You can buy 10 of them and have one that's just dead out of the box. The rest are fine. That's just the name of the game with all these aftermarket ignition products. I don't even feel brand has much to do with it anymore.
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#59
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007 (cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD 1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86' |
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#60
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Because one or two companies actually make the product that fifty other companies buy in bulk and then resell in custom-printed boxes under fifty different brand names.
"Reboxing" was ALWAYS an issue in the auto-parts world; but it's unbelievably bad now. What isn't reboxed from legitimate sources, is outright counterfeited. I ended up buying phony AC-Delco spark plugs from a crooked, lying vendor in Texas, selling on Amazon. Sent photos to GM, they confirmed that the parts were not "authentic". Amazon seller cried and denied, and demanded to handle the situation by telephone--so that I have no record of what's said. Wouldn't help me by e-mail (written correspondence that I have a record of.). Got my money back from Amazon, but the seller left bad feedback for me, because I complained about being cheated. Last edited by Schurkey; 05-27-2021 at 12:09 PM. |
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