i used an older dist with the pertronix the pertronix coil and wires,just for the sake of it i used my bro's pertronix from his 69 maverick 200 after mine failed,it works fine so something is wrong with the one i put in,I dont care,i wired up the duraspark,the engine runs really nice so i'll keep it and just run the pertronix i already have for my V-8s those i have had for years.