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Forum: Pontiac - Boost 06-12-2020, 06:38 AM
Replies: 7
Views: 6,810
Posted By roylee62
While you’re waiting for the smart guys to show...

While you’re waiting for the smart guys to show up, here is the “reading compression maps for dummies” as I understand it …..
You need to decide the max power level based on the limitations of your...
Forum: Pontiac - Street 12-23-2019, 12:08 PM
Replies: 311
Views: 76,590
Posted By roylee62
Hmm.. maybe I should have titled this "Hi flow...

Hmm.. maybe I should have titled this "Hi flow heads + short duration cams".

Yes aftermarket heads are expensive, but for those that do bite the bullet, 300+cfm heads are not much more than out...
Forum: Pontiac - Street 12-23-2019, 06:34 AM
Replies: 311
Views: 76,590
Posted By roylee62
Thx for the clarification. Yes, that's exactly...

Thx for the clarification. Yes, that's exactly what I mean. I cringe seeing a chevy motor in a classic Pontiac as much as anyone.

The other big variable is compression. Many late model cars of...
Forum: Pontiac - Street 12-23-2019, 02:21 AM
Replies: 311
Views: 76,590
Posted By roylee62
Can old Pontiacs perform like LS motors?

I am amazed by the power, fuel economy and driveability of LS motors. Why can't we do this to a legacy Pontiac 400 motor, similar to an LS3 crate engine:
>300cfm heads
cam: low 200s duration @.050,...
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