[87BOSS351C]

I have the Pete Jackson "Quiet" gear drive in my Cleveland. It is just loud enough to hear it at idle, but it isn't loud and obnoxious like the noisey ones. Gives that nice "race car sound". I don't know of any advatages over no chain stretch and many will clain you get crank harmonics tranferred to the valve train, but there were an awful lot of gear driven cams used in production engines in the past that lasted for many miles. Just my view/experiance.