Originally Posted by ap72
aluminum is a little more detonation resistant then iron but to think you can get away with over 11:1 with pump fuel isn't going to happen on a standard sbc.
Well if the cam is right it will run. Alum heads will make it possible but with anything careful tuning will be needed to make it run correctly on pump gas.
Comp 294s or bigger might be needed have to cc the heads and crunch the numbers. But it is Possible.
Pop ups are usally a little more detonation resistence. With a good squish band it should be ok. I think sunco 94 would be the most you would need with a proper tune.
87 octane is out of the questioon im sure.