Camshaft Selection Information

400 is easy out of a 340. Mine is .030 over with 10.2-1, 2.02 J heads with an air gap, Holley 750DP, TTI headers in a 72 duster, with 3 peddles (as a car should have aka 4 speed) to 3.91 gears. My current cam is a Comp XE285HL, which is 241/247 on 110. On the engine dyno, it made 391 at 5800. I will say that this cam is OK above 3000k but with a canyon carver 4 speed is kinda sucks. I have a cam that is every similar to the one he spec out above for ya. My bottom end is staying the same, but heads are changing to Fully ported RPM heads and airgap. Will know so, as the motor is coming out soon