USED FRESH External Coil Vertex, Std Deck Chevy

Great magneto here for anything naturally aspirated up to 10 PSI of boost or so. Fresh service and comes with a good, tested 28900A red topped external coil, new two wire harness, standard deck Chevy drive, bronze gear. We'll swap for a cast iron gear for no extra cost by request if you're not using a roller cam.

The housing has the tach drive fittings, but the mechanical tach drive is INOPERATIVE.