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.

With the Mopar cams in the mix, advertised duration is the best way. Sometimes it still is. I don't ignore any specs. I compare them all.