Eric's cam challenge

Bewy said
Using adv duration for comparison is pretty useless, because the tappet lift at which it is measured varies between cam companies & even for the same brand. Bullet use 0.0045" & 0.006", depending on the lobe series.

Seat to seat timing matters. If the cam companies would just publish the checking height it wouldn’t be useless.

IIRC Comp does publish those numbers in their lobe catalog.

Bewy said
Using adv duration for comparison is pretty useless, because the tappet lift at which it is measured varies between cam companies & even for the same brand. Bullet use 0.0045" & 0.006", depending on the lobe series.