Built In Ballast Resistor In Ignition Coil

plumkrazee70 said

So with MSD 6A box, blaster 2 coil and their billet distributor no ballast is needed?

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MSD has a dedicated power and ground wire, then a 12v switch which turns the box on and off. i dont think it would run with the heavy power wire on the ballast or even the switch wire for that matter.

but the straight answer is no ballast with MSD