I bought Ferrea valves for my INDY EZ heads. They were standard port and flowed 290cfm. I had them brought out to Max Wedge size and ported at the same time. Flowed 340cfm afterwards. Going from non-ported Standard Port to Ported Max Wedge Ports I picked up 3/10th of a second with no other change. Amazing. And, yes the new Ferrea valves worked great. I made about 100 runs on the heads before I sold the car. I would buy them again.Anybody know who makes the valves for Indy cylinder heads? Indy wants $225 for 8 intake valves for Indy EZ-1 heads.