marking compound

Got questions?  We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week we take on premature camshaft and distributor gear wear..                              T.H. • Loveland, CO Q: I have a 1981 Jeep J-20 with a rebuilt 401 cubic inch engine. After 5,000 miles, the distributor and camshaft gears completely wore out. So,