"In my final analysis, the Edelbrock cylinder head right out of the box has the ability to produce around 535 hp when matched with a more aggressive cam profile and a slightly higher compression ratio. I may be wrong, but the cam grind may need the intake valve opened a little earlier and the duration increased along with the overlap to help scavenging."
Read more:
http://www.hotrod.com/how-to/engine/...#ixzz3Wv0olkWm
A fwiw, don't trust the advertised spring pressure as delivered. My suggestion would be to measure the actual installed height and have a few springs tested. Make sure they are adequate for the intended cam.
.
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE