I use MSD ignition parts on all my vehicles race or otherwise. I have had problems with certain pieces here and there and their tech service is great. On the LeMans I use the Digital 6 Plus Multi-Spark computer, the blaster 2 coil, and the billet aluminum distributor.

This particular model has 2 rev limiters, nitrous retard, tach hookup, and hits the spark continuously for 20 degrees of timing up to 4000 rpm. I recommend using the optional shielded distributor cable for less ignition interference.

The blaster 2 coil delivers 45,000 volts as opposed to the 40,000 volt stock GM coil.
MSD Pro-Billet 8361. The disadvantage of this distributor is if your computer fails it does not have a module to run on its own. Price of ignition system $739.50