almighty 5.0 gods, lend me your ears my GF's dad has a 1986 5.0 mustang stock block. Stock pistons, rings, etc, etc...... He was wondering if it was possible to put 1989 5.0 stang heads on it which I believe are stock as well (he might have done alittle porting). If so could he run a E303 cam in it as well? I dont know what to tell him since im a 4.6 guy any and all help would be greatly appreciated