Good point, and you've never steered me wrong, but I gotta ask. What would be better... to buy the SKC5 or get a C4 valvebody? What year C4 VB fits the C5? I think I can get either item cheap. The SK you showed me last time was under 20 and I don't think the VB will be much either. I have a 68 VB but it will not work.