400 horsepower low compression 360

ike61 said
Im really leaning toward after market heads because I will have to get a set of iron ones done anyways

That's a step in the right direction. AFR's with a set of Felpro 1008 head gaskets would be the way to go if your budget allows it.
EDIT: I actually meant Trick Flows, much better than the AFR heads as far as out of the box potential.