I never touched the cam. the only thing I have done to that motor is change the intake and carb. the guy I bought it off of pulled it out of a satellite he just bought the week prior. so he does not know anything about it. just based off of what my other car buddies have said, and seeing how at least the intake and front cover have been off,(silicone sealer on the cover) I think it could have at least an RV cam. no vacuum leaks, timing is correct, and Tuesday I am getting a new dizzy vacuum canister so I can hook up vacuum advance. (and yes I know what installed straight up means).