Man, too many options....all I wanted to do was drop in a breakerless unit in my 235 and drive away without having to use a machine shop or be a nuclear scientist...I guess I'm not the only one out there who is now corn-fused...let me ask this: is there anyone out there that has a breakerless system that fits into a 1955 1st series 235cu 12 volt w/generator and is vacuumme advanced that droped a unit in and it looked pretty stock and drove it away and is happy?....Second part: for all of us who are part number impaired could you give us the part numbers and or name for the unit that fits the above parameters like...Mallory....Langdon....Petronix....you guys are mechanical wizards, feel sorry for the rest of us and THANKS! Steve