Scat cast crankshaft

stormydart said
Would like to stay with pump gas.

stormydart said
I would like to see about 600 to 700.

You are going to be very hard pressed to hit 600-700 on pump gas at 12-14 psi. You better have a damn good intercooler and have an excellent understanding of timing control. I may go as far as saying you won’t get there, unless you use pump E85.