Are you serious about buying a set of heads? If so, then you need to contact Barry about pricing, and Keith Craft, Robert Pond, BBM, Blair Patrick, Brent Lykins and ask them for their pricing on their heads. That will give you the answers without causing some of us to have to pick or choose sides on what works best. Any of the aluminum heads that are available now are much better than used iron heads, and porting will bring parity in horsepower potential from whichever one you choose. The cost will be different, and therein lies the rub by you asking in an open forum. JMO, but call the vendor and get your information first hand. I like them all, have ported them all professionally, and I don't want to pick a favorite and offend anyone who I have to deal with on a regular basis. Joe-JDC.