Lookin for a recipe!!

so are you limited to 412" or 400"? anyway put as much compression in it as possible, use a new forged crank, the lightest pistons you can find, aluminum rods, biggest valves the fit and call a cam manufacture for a roller cam.

412 is CI max. But 400 would be biggest BB I can use cause the 413 is 1 CI too big :(