GM BLock, decked about .020 (if i remenber correctly)
AFR 305 heads
small base circle cam
Morel Hyd roller lifers
.039 head gasket
Using mid-lift, I'm coming up with 7.900 int, and 8.950 exh.
I'm not sure what wall thickness I need?? Options appear to be .080, and .120. Do I need .120 wall, or will the .080 be ok. This is just an N/A lake Boat... around 600hp, 5500rpm max.