[Jeff Chambers]

Timing belts won't stretch or break at the rate that the same will happen with a chain. Nearly all high performance motorsports utilize the belt rather than a chain or gear setup. Talk with Comp Cams, Danny Bee, Australian Musclecar Part, Jesel, any of the makers of belt drives and they'll tell you that the rate of failure for belts is nearly zero. The timing is dead nuts on and with the belt drive you can adjust your cam setting (advanced/retarded) in less than five minutes. This is a huge benefit when you're dynoing the motor/car.