Here’s an inexpensive “insurance policy” and a safe way to protect your Air Cooled VW engine — Limit Your RPM. Choose at what RPM you want the rotor to Stop Firing. Your engine will run smoothly at all RPM ranges, right UP to the Predetermined Limit. Never worry about Miss-Shifts again. Fits all 009, including EMPI’S mechanical advance distributors as well as 1971 and later vacuum advance distributors using Ignition Points.
Note: These DO NOT work with Electronic Ignitions.