[427stingray]

I have a set of edelbrock performer rpm heads that have been ported. I don't know what they flow.
Guys here have recomended putting afr 315 heads on my 540.

What is the difference between these 2 sets of heads.

 

[427stingray]

The AFR is a superior head but with that said how much power are you trying to make out of the 540 and how much rpm?

I'd like to get the car into the mid tens.