Another great reason to leave in the points. What a great, reliable and simple settup. I love the points system on my M-127 motor. You always can get parts, I carry the old points, condensor and rotor in my trunk just in case. I have never needed them though. I always hear of trouble with a missing engine at higher RPM's with these retrofitted electronic ignitions. Just looking at the military cap, wires and plugs on the M-180 engine impresses me as a great heavy duty system. I guess I am just old school and grew up on engines with points. You just need a dwell meter to set them up, although I have done many with just a matchbook cover for a feeler gauge. The Petronix can cover up the symtoms of a wore out distributor though. I would guess the Petronix is close in price to a rebuilt dizzy, just a guess though. Has anybody ever rebuilt there distributor? Dan Caron still has a Bosch disributor analyzer and can rebuild and settup your dist. to like new condition. He is also the ultimate guru on these engines. He has installed the dual point distributors out of other Mercedes engines into the m-127, he calls the car The Red Rocket. He sells parts and does work on the M-127, M-129 and M-130 engines, many parts also fit the M-180. Check his site out
http://slbarn.********/about/