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I am all ready to start on my engine work now, buying the RSM s/c but am unsure what PSI I should run and what I would need to upgrade in order to run 8 or 12 PSI. As of right now I have ported headers, ported upper and lower intake manifold, 62mm TB, and 2.5 inch free flowing exhaust with a dump off.
I was also wondering how much we can bore out our engines and what kind of power I would be looking at if I did it? One of my mech buddies said prob around 40 HP but hes not do anything like that to a 3400 SFI before.
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