[Nireez]

You can not let the cams spin without the belt. DO NOT DO THAT!! Check it out man, the engine is out right. Your belt slipped a few teeth. Why not pull your heads off while the engine is out and have new valve seals and lifters installed, you can also see if that little slip did any damage. Thats what I would do anyways. It would suck to put everything back together and find out there was a bent valve in there that you could have fixed very easily while everything was already out of the car.

Edit* If you position your pistons so that none are at the top of the cylinder, I guess you could turn the cams without the belt but I would still do what I stated above.