I then replaced the cam with a retro roller, XR268 (1400 to 5500)
HP jumped 30 to 394
Torque also jumped 23 to 417
And not just the peaks, but much higher averages and sooner with that roller cam. I was not aware it impacts torque so much. And yes, I know the program is a bit optimistic, but I think the difference between roller and not is much more realistic.
