[John Rogers]

I tried to find a spec a while ago for distributor wear but had no luck. What I did to determine if it is worn is to hook up a dwell meter and rev the engine up/down several times and the dwell should not change. If it does that means the timming is changing and that is not good. About the only option is replacement o0f the distributor (new or rebuilt). Until I replaced the points with Compufire units I only use the Bosch points since they seem to work the best, but are affected by radial wear the most. A points replacement system such as Compufire is mostly affected by axial wear and will cause the magnet disk to break. Make sure the total advance is set to the spec, slight deviation will hurt performance and lots can cause possible engine damage. Good luck.