what combo are you using

d16a6 bottom and z6 head 10.6:1 comp
d16a6 bottom and y8 head 11.1:1 comp


thier is a guy in bredenton running the y8 mini me 11.1:1 comp and runing 11psi on a jrsc it runs good. it works good because of the flat a6 pistions and the smaller cc' chamber on the y8 head.

like everyone said go with a small sho then go up on the dyno if a/f ratio is right