i just did some modifications for my turbo charge h2 hummer ur opinion is welcome

diamond forged pistons -13.7 cc
stock rods with apr bolts
under drive pully
lil work on the intake


i was doing 5psi now ill do 7.2 psi

do u think am gonna loose hp since i lowered the compression or would the 7psi will cover the lose ?

i only did work on the intake i heared if i ported the exhuast side i will get lag from the turbo is this theory true since it will slow the exhuast speed ?

thanks in advance hope someone can say something