Thought the pick up was bad ..I put a new pick up in and took the car out, drove fine.. for about 40 minutes and quit which was what it was doing and why I changed the pick up.. Started right back up and drove a couple miles home. .. changed the ignition model with new 4 pin I had, > won't start ..put in original 4 pinmodule ..it starts.. thought the new module I had was bad as it has laid in my garage for years, so I go this morning and buy a new module.. no start. put old one in, it starts... .again ..went and got # 3 as everyone felt there pretty much junk these days put it in >> no start..... WHY will it run with the faulty one and not the new ones ....ANY suggestion .. been over the wiring and grounds they check out. new ballast resistor, coil, bulkhead connection is clean and solid. After I change any thing I put in the old one to make sure it still starts and it does. THANKS