This is all you need. A 250 is fine.
https://www.inliners.org/ubbthreads/ubbthreads.php?ubb=showflat&Number=46408#Post46408
530 hp@5300 and 588 lbs@4000rpms at the flywheel, with 21psi boost and E85


MBHD


12 port SDS EFI