I'm running PG6 pistons on my oem deck height and mill on a Z6
I'm also running a stage 2 crower cam
its running like a champ and have zero issues
in hindsight I should have chosen the P29 the CR isn't that much of a difference and from what I understand unless you are in the 13:1 or higher it should not be any problem running 91
I'm also running a stage 2 crower cam
its running like a champ and have zero issues
in hindsight I should have chosen the P29 the CR isn't that much of a difference and from what I understand unless you are in the 13:1 or higher it should not be any problem running 91