Head Recommendation
Spend your money where you want. I wouldn't send my or recommend stuff to PA, that's for sure.
You best make sure you are getting somebodies best work when paying, cause I've seen and watched stuff that was done that didn't work for crap until it was fixed by another person. There's another member at moparts, to go with the two I know (since fixed), that can't figure out why his ede's aren't up to snuff. Let's just say "the man" did them first. Flow numbers aren't everything.
Trying to get 138-139 out of a 3000+ pound SB car is going to take some work, like 630hp at the wheels. 2700 needs about 560ish. Ain't no way an rhs head or and ede will get there NA. W2 with a ton of work??? Maybe. Seen a 416 Batten w2 engine make 660-670.
God I love the ignore feature, too bad people hit the quotes so I have to read some of it.
Have fun and we return to your regularly scheduled program...