Just bought a newly rebuilt LA 318 and asking about this cam that was in it?

Well my father thought it was a over rev maybe. But it was like this when we got the motor when we took off the heads we noticed the little knicks in the pistons. Only 2 mins you. But the whole reason why we're taking apart a perfectly new rebuilt motor is because the guy that had it took off the intake and carb and sold it. He never covered up the motor after that. He's had the motor for 3 years. But still it's in great shape sitting in his warehouse just had grit in it. So we are tearing it all the way apart and doing a hot tank on everything and going ahead and putting in new rings and crank and cam bearings. Btw 2 cam bearings were "off" alittle of the hole alignment of the oil holes. About half a hole out. So it's just precautionary. Figured I would try to figure out the cam that's in it so we can go from there. The guy I bought it from didn't do the rebuild.