I have an f22b1 with 132k on the clock. Headers and exhaust isnt cutting it. Could I reliably run 4-5psi on this block? I would rather not port and polish. Turbo setup seems more profitable but i dunno. What do you guys think.

 

yes you probably could. compression test and post results

 

4-5 psi you will barely feel it....you can run 8psi daily with no worries, just run the compression test and see what the numbers are

 

i was at that, a 7psi spring, but i lost a lb or two, so it was really at 5, and i could feel it
edit: i wont even get into my boost creep problems where it would spike to 13

 

run 14

 

13 was ****-your-pants mode when you weren't expecting it

 

poor, poor accordfreak