Unless the coil is marked and there is some indication that it has an internal resistor, it needs an external resistor. It will not perform correctly with the full 12 volts to the coil. Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes 1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes 2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans 1947 Willys CJ2A w/F-Head engine
