Ok, I'm getting the MSD 6AL and Blaster SS coil installed in the R because I plan on getting a Supercharger very soon. Now, I have the ignition box, coil, and wires. Do I need to use a MSD cap too? Or is the O.E. unit good enough? Any help would be appreciated! Thanks.

 

You're either going to have to buy an MSD cap or modify your stock one, so you might as well just buy the MSD cap.

 

unless you did a computer whichs takes away the stock rev limiter... do an MSD 6a instead of a 6al (the only difference is the 6al has an adjustable rev limiter).. you will save your self a few bucks, or you can just put that money twords a new msd distributor cap.....