Seriously,
Just do a flattop 440 and spray away..a big stroke, and big compression is just gonna beat the block up faster. Used aluminum rods, stock crank, flattops, solid cam, get you in the 9's, and will hang together pretty good until you miss on the N20 tune-up.

Done this far too many times!!

"Livin' in a powder keg and givin' off sparks" 4 Street cars, 5 Race engines