Quote: Yep, it was a Camcraft cam. 284 deg duration Intake opens at 30 BTDC Intake closes at 74 ABDC Exhaust opens at 74 BBDC Exhaust closes at 30 ATDC 60 deg overlap
In '66 would this be a solid cam? So it's 495/505 lift and 284* advertised duration? How much cfm was the holley 4160?? What gear set in the the rear? Was it 4.86?
Got some info on the cam. These are hand written notes that are on the dwg . It is a .493/.503 lift cam with 284 degrees of duration. Hope these notes make sense to you. I'm not sure what the A,B or C stand for . It isn't noted on the sheet.
P820-B (Intake Lift) Lv .493 O C A 75 75 B 16 22 C 4 4
P820-C (Exhaust Lift) Lv .503 O C A 75 75 B 28 34 C 4 4
. It is a .493/.503 lift cam with 284 degrees of duration. Hope these notes make sense to you. I'm not sure what the A,B or C stand for 
. It isn't noted on the sheet.