Excellent dependability in a small form-factor, constant duty magneto. 3.0 amps of primary output and 32-38 milliamps of current with the red topped 28900A transformer. If you're a PUSH-START Sprintcar, you might consider running the 28990 black-topped coil with the Sprintmag+ and enjoy 42-46 milliamps of current at the spark plug. If you use a block-mounted starter and crank your engine, it is recommended you stay with the 28900A to ensure easy starting.
This system is ready to go, outfitted with the small cap, lower drive and coil of your choice, plus a 4' long harness ready to trim-to-fit.Stack Cap, Chev, Standard Deck Drive, Transformer, Harness, Bronze Gear