Quote:

your maximum lo speed torque must be your cruise rpm for efficiency.
..short duration cams should be more efficient at a lower rpms than long duration cams.



I know that, but that is not what the poster stated. He stated cruise RPM should be where HP and TQ curves cross, that is 5250 for all engines, all cams, all whatever.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.