Years ago, I bought one of the first FBO ignition systems. Last year I removed the ballast and the FBO coil and replaced the coil with a Mallory unit that did not require a ballast. The system seems to be running fine but I emailed FBO about their new box and D said that my existing FBO ECU will burn up without a ballast. I have been running it for about six months or so but I do not put allot of miles on the car. I assume that I am going to see problems so I am thinking of buying the new FBO ECU and coil that does not require a ballast. When I removed the ballast and coil, I cutout the back of the ECU bracket to allow it to cool down just in the case that it creates more heat without the ballast.


I would like to see proof of the temps on an ECU with or without a ballast too.