Made 615 hp with my old +.030 400 with my tiny 220 cfm 16 heads with 12.75:1 compression. There's another 400 with iron heads in the works that will blow people's minds.
on 93 octane??? Thats all I run in the car now and it doesnt have half the mods I want to do to this engine. anything passed 12 concerns me. You'd think I'd have the best/freshest gas out here because of the refinery in NJ but that doesnt seem to make much of a difference.