Totally agree--I have tried 30* seats exactly twice (not including Pontiac builds) and both times the engine was WAY "cammier" and also WAY down on power. I have flow tested 30degree seats backwards and they FLOW like gangbusters up to .400"--like 20-30cfm more backwards than they do "forwards". This totally explains (at least in my mind) why the engines respond the way they do. Only old diesels should use 30* seats. Vizard was and is wrong on this one. J.Rob
