Best guess on 416 motor

Wish I could get my D50 that light. They don't make any fiberglass parts for it. You are 150 lbs lighter than it. Why are you running race gas with 10.65-1 comp.? My 394 small block is 10.9-1 and it runs faster on super unleaded (93).

We don't get good gas here. It goes dead in 3 months if you let your car sit. {We use a lot of fuel stabilizers.} Plus not a cheap motor so VP is just for insurance.
We pay $1.33 for our parts with the dollar difference. :burnout: