We called MSD to clear un some common Questions about installing an MSD 6AL with the integral rev limiter, but the information presented here is typical of aftermarket capacitor-discharge ignition ...

What We Did Hopped up an MSD HEI ignition system by installing a Super HEI Kit Bottom Line The addition of a 6AL box and external Blaster 2 coil provides a hotter, more consistent spark Price $310 ...