Duraspark has one major flaw - it still requires you to use a resistor to knock down the voltage to the coil.No! There is nothing wrong with Duraspark....However....The aftermarket stuff that is sold "Now" is junk! Yea I know.....your 30yr old MSD runs great.
less power into the coil = less power out of the coil.
Its no better than points, except for the magnetic trigger.
And yes, my 30-year-old MSD runs great.
i do trigger it with a Duraspark distributor.