400 horsepower low compression 360

set of aftermarket heads and a cam that's got like 270 duration and about 480 lift and you're probably close with the 750 and torker.

sounds like you're trying to not spend the dosh in rebuilding the bottom end. if that's the case you need all the help you can get and that's where little things like roller rockers bumping you up a little, an air gap over those other intakes, a windage tray, an 850 double pumper.

otherwise, pick a reasonable cam and slam it together with what you've got. it'll make gobs of torque and be silly fun to drive.