No Spark

If it turns out to be a coil;
I highly recommend the Accell sq-top big Yellow,SuperCoil. Mine has been going since 1999, and has over 125,000 trouble free miles on it, and sparks reliably to over 7200rpm, while operating in the sub-3000 zone for looong periods of time. I mounted it on the fender-apron with a two foot coil-wire.
Personally, I prefer an oem-type distributor with a separate amplifier for the pick-up; it makes road-side repairs quick and easy.