408 bbc gm 188 square port heads factory 163 alum intake 780 holley 10.5 compression 4 speed muncie 373 gears looking at lunati 60213 hyd roller 241/249 .625 lift weekend car may go to strip couple times a year like lopy idle

 

With that cam it will probably need some higher than stock runners on the heads to help it breathe.