well i would use some thing like 235/235 472/472 108 on 108 if hyd flat cam .but a hyd roller cam is what i would use with 1.6 rockers 584/548 238/246 on 108 if 10.5 cr 242/250 584/548 on 108 av 2, 3500to 6500 this cam will make it move or just use your cam