For those who want a little more "fire in the hole" on their Tractor, we carry our own hot Coil capible of putting out 40,000 volts. It's equal to Pertronix's "Blaster" Coil but easier on your wallet! Our Coil is for 12V systems, has a built in 3.0 Ohm resistor like the "Blaster" and is rated at 40,000 volts. Can be used with points equipped Distributors or Electronic Ignition kits like the Pertronix we sell. Anyway you slice it, we got it at B&B Custom CIrcuits!!