[Jeff Frigo]

I have the exact same box that you have. I personally HAVE!!! run this unit without the chip, it runs fine, just without the rev. limiting feature.

MSD have the best ignitions on the market, my engine builder who builds pro-stock motors wouldn't use anything else. You have a problem somewhere else in your car.

Good luck, let us all know what the real problem was when you find it.


Jeff