[twobjshelbys]

Originally Posted by Phill Pollard

I'm not sure where the 4.6 psi limit comes from unless you're talking about

I'm not saying you can't do more boost only that the guy I know runs very mild. Not a limit except for self imposed. I recall it being consistent with the setups of the day. Also this classic vehicle did not have an intercooler.

I'm also not sure what you can get out of the centrifugal types like Paxton and ProCharger.