DeuceCoupe, thats why I want a tight LSA for the cam range that I am looking at. The amount of .050 duration is so low that I think that I can get away with no ill efects.(Who said a little rough idle is a bad thing?)Have you measured any stock 250 cams at the different lift points? Or the PAW cam that you have? The only non-stock 250 cam that I have any experence with is the Crane 203901 in my 79 p/u. The truck idled smoothly,pulled hard to almost 5k rpm and was a little weak in low speed torque.It didn't get going until 1500-1800 rpm IIRC. Huge power increase over stock. Looking back I should have made up for some of the low speed loss by upping the compression by milling the head ect. This time I have a lighter car and an auto trans so I am going after a little more low speed torque. Jay
