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never had it tuned to 22psi but right now at 25psi im making 460awhp.
Only difference is I have 280 cams and 1000cc inject. and Im almost have them maxed out
Im running full 3037s turbo kit, hks intake, 280 in ex cams, arp headstuds, hks hipower exhaust, high flow cat, 1000cc injectors, 255 fuel pump, ams fuel rail, 21lb. spring in wastgate.
what are you running?
if you havent swapped out the spring the most I mad with stock wastegate spring was 379whp