New heads?

MOPAROFFICIAL said
Stock factory valve job 2.02 j heads are worth 400 hp no problem. These heads he has , well lets hear the valve size and who did the porting along with numbers..m

Wait! You know nothing of the build or cam he is running. He should post about the engine and cam specs following your idea.

AJ/FormS said
FYI
If you switch to aluminum, they suck heat outta the chambers, dropping your EFFECTIVE compression ratio.The usual cure is more cylinder pressure.
Maybe you already know this.

That’s BS as already tested and proven differently.