Does anyone have a FSM or any other "offical" oem specs on this cam ? I'm planning on running stock eliminator next yr with a 1970 383 challenger. According to NHRA,the cam specs are different on the 383 magnum from 70 to 71. I have the FSM for 70. What I have is below on cam lift. NHRA hp rating for these 2 engines are only 1 hp apart. So running my car as a 1971 may be a better choice, but I'd have to buy a grill/tail lights at roughly $1000. So I need to verify cam specs and make sure there isn't a typo in the nhra docs.


1970
FSM: lift = .450/.458
NHRA: lift = .455/.470

1971
FSM: lift = ?
NHRA: lift = .467/.483


thanks