I have the fbo ign on my 83 cop car with 318 4 bbl. Daily driven for 3 years and no issues other than the ballast resistor.Starts better,idles better and has more low to hi rpm power. My fbo kit came with a made in mexico resistor which lasted a month. I switched to the msd resistor and was getting a year as they got eally hot. So I spaced it away from the firewall. It hasnt popped since.