[Alan Roehrich]

We've had great life out of our Cloyes sets on the stocker engines. Never a problem at all. We typically get several hundred passes out of them, and only replace them out of guilt. We use the set that has the 6 bolts on the cam gear to allow easy adjustment.

Nothing wrong with Rollmaster sets, either, good quality pieces.

If you're killing a Cloyes race set with heat treated steel gears, you have something really bad going on.

By the way, Kevin Cradduck, my partner, and the guy who runs NitroPlate, is a patent holding timing chain engineer. He'll tell you in a heart beat that chains do not stretch, the gears wear. If you ever saw what they use to pre-stretch a timing chain, you'd be pretty convinced that your engine simply won't stretch a chain.

Usually when you have a timing set go away in a very short period of time, if it is a real race set with a good roller chain and heat treated steel gears, you have some serious harmonics that are doing it. At that point, the timing set is merely the fuse in the circuit, it gives up before something else breaks.