Thanks for the information fellers. I decided to try the Vortec heads and keep a 10:1 compression ratio (much easier to change heads for better flow later than increasing compression). Only using a .453" lift cam, and my racing days are long passed. I was reading terms that I've not heard before. Thank you 61 suburb for the explanation. That's why I like this website. You can ask a question and get an answer without feeling stupid.
Time to get my hands dirty.
