Anybody else had issues with a MSD Digital 6 ignition? I've replaced mine a couple of times under warranty, but I started the car this week and its developed a missfire at high RPM again. Swapped the box out for my old MSD 6A and it worked fine. I called MSD and went through the whole question and answer thing with their tech line and the final vedic was they want me to run MSD only wires, a MSD coil, and a MSD distributor. They say the boxes are "sensitive" to other components.
I hate to be spending more money and still not have it work.