[Slick61]

I've got the Pete Jackson timing gear set on my aluminum 427W. Yes, the gears DO make noise, though it's hard to really hear it over the pipes... especially if you've got a nasty cam like I do. I was concerned about the gear drive as well, and when I looked into it, it seems to be used more for racing-type high rpm applications. But seeing as I only put a coupla thousand miles a year on the car, it's probably no big deal. My only concern is translating vibration to the valvetrain & possibly causing bearing damage. Dunno...