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Search: Posts Made By: amcmike
Forum: Pontiac - Street 07-31-2022, 09:47 PM
Replies: 83
Views: 10,026
Posted By amcmike
Drive with the new gears first. Once you get a...

Drive with the new gears first. Once you get a feel, I think you'll want to keep the bottom end torque that the U cam is giving you hauling 4500lbs. In which case, the 2800 would probably be a...
Forum: Pontiac - Street 07-26-2022, 08:03 AM
Replies: 83
Views: 10,026
Posted By amcmike
It's a bit complicated, but I'll try to simplify....

It's a bit complicated, but I'll try to simplify.

The GENIII passenger vehicles (Corvette, Firebird, etc.) were in the low-mid 10s with aluminum block/heads premium. The small engine trucks...
Forum: Pontiac - Street 07-25-2022, 06:19 PM
Replies: 83
Views: 10,026
Posted By amcmike
Actually it is, and today's OEMs do. Modern...

Actually it is, and today's OEMs do.

Modern engines use much higher compression ratios, enabled by direct injection. The higher SCR increases efficiency even at part throttle, thus increasing...
Forum: Pontiac - Street 07-24-2022, 09:45 AM
Replies: 83
Views: 10,026
Posted By amcmike
Start with the gears, it'll make a huge impact.

Start with the gears, it'll make a huge impact.
Forum: Pontiac - Street 06-29-2022, 09:48 PM
Replies: 24
Views: 3,748
Posted By amcmike
Slow the centrifugal curve to be all in at...

Slow the centrifugal curve to be all in at 2700-3000rpm (you have it way too quick). Then drive it with the vacuum connected to see if you get part throttle knock. If it does, keep removing vacuum...
Forum: Pontiac - Street 06-23-2022, 10:43 PM
Replies: 95
Views: 11,312
Posted By amcmike
Hence why it's best to choose a camshaft based on...

Hence why it's best to choose a camshaft based on valve opening/closing events. LSA (aka LCA) and advance are just reference to calculating those events.
Forum: Exhaust TECH 05-06-2022, 08:50 PM
Replies: 52
Views: 10,706
Posted By amcmike
I can't say the source of the data, but there's...

I can't say the source of the data, but there's this floating around the internet. https://www.forabodiesonly.com/mopar/attachments/muffler-flow-rates-jpg.1715284008/
Forum: LS Talk 05-01-2022, 06:30 PM
Replies: 8
Views: 2,384
Posted By amcmike
Depends on the year. 2020 they replaced the V10...

Depends on the year. 2020 they replaced the V10 with the 7.3L pushrod V8.
Forum: Pontiac - Street 04-08-2022, 11:19 AM
Replies: 16
Views: 2,104
Posted By amcmike
I believe the older generation D ports like 36...

I believe the older generation D ports like 36 total and the newer like around 32 degrees. So makes sense.
Forum: Pontiac - Street 03-10-2022, 04:58 PM
Replies: 98
Views: 13,608
Posted By amcmike
haha! I was thinking similar. It's more like a...

haha! I was thinking similar. It's more like a paint time out corner :-)
Forum: Pontiac - Street 03-03-2022, 07:05 PM
Replies: 21
Views: 2,083
Posted By amcmike
If the camshaft has a lot of overlap, it'd...

If the camshaft has a lot of overlap, it'd probably like a decent amount of initial. The R2R comes with the 21* limiter installed. So, I'd go ahead and install the black limiter (18*) along with 1...
Forum: Pontiac - Street 12-27-2021, 11:23 PM
Replies: 23
Views: 4,704
Posted By amcmike
Looks like the wife's going to be missing a salad...

Looks like the wife's going to be missing a salad bowl soon...:D

https://www.dailymotion.com/video/x693421
Forum: 67-69 Firebird TECH 06-02-2021, 03:34 PM
Replies: 6
Views: 1,460
Posted By amcmike
The original OHC6s were pretty heavy (similar to...

The original OHC6s were pretty heavy (similar to a SBC), but so are the all-iron Pontiac V8s (like a BBC). Unless you've lightened it with aluminum intake, al heads, tubular headers, etc. should be...
Forum: 67-69 Firebird TECH 04-27-2021, 07:16 PM
Replies: 17
Views: 4,693
Posted By amcmike
https://shiftworks.com/collections/conversion-kits...

https://shiftworks.com/collections/conversion-kits/products/1968-81-firebird-factory-shifter-conversion-kit
Forum: 67-69 Firebird TECH 12-14-2020, 09:54 PM
Replies: 39
Views: 5,601
Posted By amcmike
I'd just drop the front 1" instead (watch your...

I'd just drop the front 1" instead (watch your header clearance) rather than raise the back.
Forum: THE LOBBY 12-05-2020, 07:38 PM
Replies: 24
Views: 1,494
Posted By amcmike
I only have 150 allowed :-( ...

I only have 150 allowed :-(
https://i.imgflip.com/4p7z1f.jpg
Forum: 67-69 Firebird TECH 11-19-2020, 11:23 PM
Replies: 1
Views: 1,011
Posted By amcmike
Well, if the heads are original to the 1965...

Well, if the heads are original to the 1965 engine, AC Delco R45S would have been used and gapped at .035" due to the points.

I'd probably also go one step colder than stock, and use a R44S to...
Forum: THE LOBBY 06-12-2020, 10:56 PM
Replies: 70
Views: 6,287
Posted By amcmike
Typically, if you claim it through insurance and...

Typically, if you claim it through insurance and deem it a total loss, the car becomes their property. And by law they can only sell it (back to the owner or otherwise) with a salvage title.
Forum: Suspension TECH 03-18-2019, 03:18 PM
Replies: 8
Views: 514
Posted By amcmike
When's the last time you've had the fluid flushed...

When's the last time you've had the fluid flushed and replaced?
Forum: Suspension TECH 03-06-2019, 12:09 PM
Replies: 23
Views: 1,096
Posted By amcmike
As mentioned used sway bar from a T/A is biggest...

As mentioned used sway bar from a T/A is biggest bang for buck, even though you already replaced bushing on the stock one.

If you haven't changed your body mounts yet, find some aluminum (you'd be...
Forum: Suspension TECH 06-19-2010, 03:01 PM
Replies: 5
Views: 590
Posted By amcmike
Take that old magazine article with a grain of...

Take that old magazine article with a grain of salt. I've seen that before, and found discrepencies. For instance, the ideal backspacing on a 1st gen camaro is 5.5" on a 9.5" rim. Plus, a 275/40...
Forum: Pontiac - Street 10-03-2008, 08:36 PM
Replies: 17
Views: 1,305
Posted By amcmike
Idle: Best vacuum reading (can be as high as...

Idle: Best vacuum reading (can be as high as 16:1)
Cruise: Best vacuum reading (as lean as possible without bucking) can also be as high as 16:1
Moderate loads: 13:1 - 13.5:1 @ moderate load (not...
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