What I was trying to say was that in theory, the cam sprockets would have to travel 46 revolutions in order to return to it's original point on the chain assuming it moved one tooth on each revolution. This would then re-align the timing chain but possibly not the balance chain, that could mean double or triple the revolutions, but surely, once the balance chain has been aligned, and assuming it hasn't slipped as well, it's immaterial where it's alignment is if your only concern is the timing of the cams. Without actually doing it in real life it's going to be difficult to work it out, especially if your talking about trying to align both chains. If that was the case, then yes, it could be in the hundreds of revolutions I suppose.