Hey guys newbie need a little info here.

Ok I have an 83 cj7 that had a amc 304 in it when I got it the 304 had some wild cam in it but other than that it was stock. Well I rebuilt the 304, and after I put around 15,000 miles on it the cam gear that drives the distributer failed thanks to a new hei I got from 4wd. I didn't know the gears would not work together.

I tore the motor down to inspect the damage it wasn't too bad but I wanted more power anyway. So I got a rebuilt 360 from s and s engines, and put all my 304 stuff on the 360 the guy at s&s said it would work fine. So far it has i don't have any bad vibrations or anything. What I want to know is can you really use a 304 flywheel and balancer? Or is it killing my internals?

And also do you think the hei killed the old cam gear because it wasn't matched? I have a set of factory matched gears i'm going to use on the 360 with that hei?