6-8 psi. Mike at OST has done more, but we're not him.

I wouldn't do a blow through with delicate pistons on a 6.1..we go through this about once a year...you need EFI and forged pistons to really make use of that motor.


My Build thread: Let the hemi swap begin!

1968 wanna be pro touring whatchamacallit with some fancy stuff and a new roof skin.