[jusjay]

Been running 2X4's (offy high rise and 500 1403's ) for about 5 years now. I have had zero problems on the street.

[firebirdcrazy1959]

all look really nice

[esahlin]

A couple modified Holley 850s on my "custom" T-ram.

[suprchikn]

.First I'd like to apologize to everyone for that ridiculously huge image of my dopy carb linkage which is causing all of us to have to scroll back and forth to read the text of each post, long or short. I may be able to work on them there carb thingysbut I'm a little lost with anything more than just typing. (not good with the postal system either). But I digress.

Second, I agree with everything Tom said, from nostalgic look to ease of setup and tuning, the offy and afb's or vac/sec holleys and original air cleaners are the way to go.

third , sorry this is so long.

...But I have issues, Two years ago Paul (Spotts) had me do a basic rebuild and port match on a pair of 660's and spacers on an Offy intake. He told me to drop it on my engine and tune it and see if I liked the setup. Bottom line it took me two months to give it back and I kicked and screamed all the way. Well since I had just gotten my glass hood which was the first one out of the mold (the super 400, I built the original and Paul made me get it molded) so I was taking measurements for a victor/dominator combo and seeing what else would fit. so the T ram I,d been eyeing for a while on Pauls shelf came home with me. I got another set of the carbs and went to work. Two years later and here i am with this setup, mostly just because I can fit it under my hood. BTW I run a Hemi 2x4 filter built into the hood and the carbs don't really know what they are anymore... airflow, fuel circuits etc. And one of these days theres going to be a blower/ fuel injection setup under the hood strangely reminiscent of Pauls and he's going to go to start his dragster and... well anyway im pretty sure that'll fit too. i have issues!

R 70 Judge My combo; 68 firebird, Tremec TKO, 12 bolt w/ 3.73s narrowed 6 inches moser axles etc. Minitubbed2.5" , Caltrac bars and split monos, homemade weld in frame connectors and 8 point roll bar. BFG 295 65 15 Drag radials in back.
Motor : 71 two bolt 455 .030 over. stock rods, ARP rod and main bolts Stock N crank, forged TRWs bottom end is not balanced. #13heads ported but I actually forget flow numbers but I kept the ports small, and mirror polished the chambers to thwart detonation at 11.5+ compression. 1.6 roller rockers stainless valves etc. Heres the kicker, the cam. Comp. Cams 320 H which is a flat hydraulic race grind, with 268 at .050 duration and 580 lift single pattern with o ton o overlap to drive on the street. Accel racing dualpoint with 1 set removed (to run with MSD 6 AL) locked at 34. 2" Hedman Huslers with Flow master 4-2-1 collectors, 3.5 " exhaust w/ crossover and Flowmaster Delta Force race mufflers exiting just in front of rear tires. So back to the kicker, this cam is just silly for the street (for people without issues) but I think Paul thought he was getting me back for something past or future and as it turns out he cant pick a bad cam even when he tries. LOL. Spotty and I have been friends for a long time. All that overlap dropped my cranking compression from 240 psi to 180 so I 'm running pump gas on the street And I'm supposed to say that Paul does not want his name mentioned inconnection with the pump gas thing or when I say that I shift at 6200 rpm every time I race it. Please don't don't make me explain or defend my inability to see the red needle set at 5500 because every time I do I'm pretty sure I push the great track cleanup a little closer, but I've been driving it like this for years and if I change now , well you know. So this is really a street car that sees the track a few times a year for a current best of 11.457 at 123.93 with a 1.753 short time. I grocery shop and even do my Christmas shopping in it. I live in Pennsylvania so nuff said. In fact I think I'm done. Thanks for bearing with me. Ray

[Rx:GTO daily]

Nice to know I'm not the only 1 in PA that Christmas shops in my GTO...nice to have that trunk to drop packages into!!!

[Skip Fix]

Not quite a Pontiac but my high school daily driver(threw papers out of it too) was a dual quad 409. It used dual 715 cfm Holleys no PV (a tunnel ram carb) mounted sideways on Offy adapters and linkage. The vacuum dashpots wouldn't fit so we put the old screw in the linkage and had all 8 barrels open. Didn't seem to have any drivability issues but it was a stick. The primaries with the accelrator pumps were each on one plenum with the configuration. Now all ther rubber line wouldn't pass tech now adays but did pass IHRA in 1972.

[Skip Fix]

Here's another dual quad setup for you, just mocked up.

[firebirdcrazy1959]

thats right rub it in

[BruceWilkie]

I am running 2 750 Edelbrocks(manual choke versions which have different airbleeds than the e choke versions) on a P65 with 1 inch 4 hole spacers. This is on a mild 400 with Crower 60916 cam 2200 convertor mildly ported #46 (1969) heads with 2.11/1.77 valves screw in studs etc.approx. 9.5 compression. I tried straight linkage but too responsive in stop and go traffic so switched to progressive. Set up as follows. primary throttle on front carb set so .002" feeler gauge slides through .003" wont. Idle speed is set from rear carb. idle mixture screws on front carb just under 1 full turn out from seated. rear carb screws set almost 1.5 turns out. floats and accelerator pumps set per edelbrock 750 spec.. orange metering rod springs(stock edelbrock) best jetting so far is .107 primary jets with 65/52 metering rods (both carbs) secondary jets are .101 . This setup seems to be working the best for me. I am planning to try .104 primary jets with 60/52 metering rods after I get some track time on present combo. This is a smooth setup and has NO bad manners. If I were to build a higher rpm motor I think the Offy hi rise dual quad would be a better choice. I think the P65 is fine on a 5500 rpm motor and a better choice than the low rise offy.

[tom s]

Bruce,I think the P65 is a fine intake,for the nostalgia look I push the Offy as the carbs are spaced like the Pontiac SD intakes,if you use the small top older AFBs from Buick the jetting is close to a pontiac,the aftermarket fuel lines will fit and the reproduced SD air cleaners and linkage will fit.NOTHING wrong with the P65 setup just not as "close" to the original look.Tom

[BruceWilkie]

Question ... is there a High Rise dual quad that will fit my 1960 "109" heads? Im looking for something that will out perform my 59 tripower setup.

[tom s]

never seen a high rise early intake,maybe Jon will reply.Tom

[Skip Fix]

If you look real close those are the same Holleys as on the "09!

[Big Chief 541]

I hate you

[carbking]

Bruce - how high is high?

Check the link, which lists the multicarb manifolds available for Pontiac of which I am aware:

http://www.thecarburetorshop.com/Pon...emanifolds.htm

The Offy manifolds labeled as "competition" are somewhat higher than the others. The M/T cross ram is also higher than the others. This manifold has gotten a bad rap as some have used it with bowtie carbs instead of Pontiac carbs, and gotten less than desirable results (which is predictable).

I have no doubt that virtually any of the listed dual quads (with appropriate carbs) would outperform the 1959 tripower.

Jon.

[R 70 Judge]

Originally Posted by Skip Fix

Here's another dual quad setup for you, just mocked up.

That intake fits E-Heads?

[66 tempest]

this is my sons setup, car runs way better than with single holley.. 440 magnum

[speedshopmike]

crssram.
i want to buy your crossram.
how much for the women and children?
i mean, the crossram.
how much for the crossram, AND the women?

[Skip Fix]

Sorry guys, I've always liked the look of a crossram since Edlebrock made them pre tunnel ram days(yes I'm that old). They might not perform any better but they look cool.HArd to beat the look of multi carbs.

Yes it's been converted to fit late model heads by one of Tom Vaught's buddies with the plenum balance tube added also. Will probably go on my RAIV heads and a 400 one day,probably with dual Holleys of some size,or if I can figure how to add some short injectors underneath make it an EFI intake.The long runners should make it good for that.Down side is it doesn't flow any better than a stock intake on high flowing heads

[speedshopmike]

yes, we must find a way to bump skip off, then steal that power ram intake, then share it amongst ourselves.....

BWA HA HA HA HA HA !!!!!