ACCEL Electronic Ignition Distributor Harley Davidson A557

Lightweight billet aluminum construction, 12V unilite ignition with fully adjustable advance allows faster and easier starting, Features advance curves, rev-limiting and high-spark output, Can be set to run either in a single-or dual-fire mode, No head removal when using stock heads, Requires graphite plug wires and resistor spark plugs, Made in the U.S.A.