Hey, I'm new to this site and don't have time to read all 1800 threads here, and I was wondering what you can tell me about vortec heads. I picked up a pair from a guy i used to work with for $50 and had them rebuilt, machined to accept a bigger cam. I was wondering what kind of power can be made with them and what there limitations are. I have an Edlebrock RPM Air-Gap, Holly 750, Comp Cams 268 XE, MSD Pro Billet Distributor, Digital 6-Plus box, and a stock bottom end on a 350.