Stop in for a cup of coffee
Substituting the .004 specs from a replacement cam company, Dynomation finally produces a power curve that looks like the ones from the dyno tests.
340 cam specs?
Intake open, close Exhaust open, close
FSM, unknown lift: 22 66 74 22
Catalog SAE .004: 20 79 79 30
We know that factory cams have a long slow opening ramp and and the lobes are asymetrical.
Makes comparisons to other companys' cams difficult.