AFR Heads

Newbomb Turk said
If the best you got out of a W5 head was 300 the guy was a hack and I don’t care who that was.

No wonder your **** didn’t run with them.

I posted above how I’d fix the W5.

In fact, I’ll say publicly if I had a fresh set of unmolested castings I could easily get 375 out of a W5 head.

FACT.

And it would burn fuel with a combustion chamber that’s far better than most people think.

I don’t need to assume what you don’t know. You don’t know induction and you’re proving it here.

Edit: 400 CFM if I could weld on them.

Those two sets of heads were ported by household name Mopar head porters. Either of which you are very familiar with.
Btw, one of those sets I ran, a little later on, with a bit more camshaft, those heads went 140 mph at 3320 on super stock springs. Not too terrible, I don’t think. Not many have done much better