Don't recall the #,,,,look at their website,,,it was described as being for street rods/drag cars/etc. IIRC it is only like 40 amp, but works for me. My car idles at 1100rpm and it puts out 14.3 volts at that rpm. Search dbelectrical and it should show up,,,they are in Tennesee.

If you like drag racing, support your local track.