Do you think I could get away with 93? I've got everything but a stroke crank in this build. I was targeting 10.5:1 but the "drop in" wiseco piston is actually 0.020 taller than the stock setup and jumped my compression ratio up which is really annoying to me. Already have the thickest head gasket.93 -100 octane should do it .
Methanol you advance it as it burns slower .