currently running MSD SCI, MSD external coil with wire, and MSD cap, how to go back to stock ignition?? what do i need to buy.

 

u need the stock cap and internal coil.

 

I prefer to get a stock distributor for $35 and plug and play with only a quick connection and three bolts. Cap and coil might be just as cheap, unless you cut the wires right at the distributor and in that caseeither learn to solder really good or buy said distributor.