Spoke a bit with Tim at FHO yesterday. He gave so much info i don't think i absorbed it all, but i did get that the replacement head has been discontinued and the next head up the list would be the Stage v custom with a 2.30/1.90 valve and a 241cc port that flows 471cfm i think at .700. He says he has a cnc program that cuts a custom port per application. Another gentleman i spoke with last week who has a parts business wanted to sell me a Stage v custom with a 2.40/1.90 valve and flows 500cfm@.700. I'm concerned that bigger head might be too much head for my combo. A 12:1 572 850-900hp street/strip deal. I don't know the port size on his custom head, but i'm really thinking it might be way more than what is needed. What do you guys think? Any of you guys ever bought heads from Tim@FHO for a combo like this? Tim also mentioned using something like a lash cap that prevents the valve from ever dropping into the cylinder which sounds like a good idea. He's got my interest.