I would like to know if any one has done any dyno testing W/differant seat angles.I have done testing on the flow bench(SF600)W/30* 45*50*and 55*seat angles.I have found the 30*to pick up low lift as would be expected and 50~55 to hurt low lift up to about .500 lift on the intake and not hurt the exhaust side as much.At any lift over .500 W/the 50* seat the port takes off like 40cfm in .100 of valve lift and you normaly see about 20~25 cfm W/45* stuff.Now I would like to know does the dyno show what you think it would ?45* stuff makes TQ lower than the 50*?(most of the NASCAR and prostock cars have the 50~55*stuff)Is the 50* to help wet flow into the bore?Help W/the reverse flow in the intake port?
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