Randy...Chad brings up a valid point..I don't know what the cost would be by adding new valves an a port job. I thought about that a while back and like Brad H said for my heads it just wouldn't be worth the cost factor. My heads were done by Radar at R&J Performance and he also says that it isn't worth doing. I realize that our engines are different...Used Eddy rpms still bring pretty good money,Perhaps you could get a deal on some Indy EZs....I would love to do that myself but the last frost we had here killed the money tree!! Good luck on what you decide!!