Quote: Andy, What was the cam lift with the 1.7 and 1.85 rockers?
Lobe lift on the cam is .393/.401 so with the 1.70 setup it was .649/.661 net lift.
With the 1.85/1.70 split ratio rocker arms the net lift was .706/.661.
This really isn't a very wild cam even with the 1.85 rocker arms. .706 lift isn't anything exotic these days. I was running some fairly mild Comp 26097 valve springs and the motor seemed happy up past 7300 rpm.
We saw the best peak power numbers at 7300 rpm with the 337 intake. Evidently the shorter runners on the 337 wants some more rpm to make power. The first pulls on the 337 intake we didn't turn it enough rpm and the power was down a bit. Then the dyno operator decided to lean on it a bit harder and the power jumped up a bunch.
