I've got a short in the ignition circuit so maybe it's throwing the whole system out of whack. I posted what I found in the thread I started in the tech section, but basically I've got the 12v to the ignition circuit going to ground right now. I can't imagine anything is running right, you know?
I owned it for 10 years, beat it to absolute death, and needed to sink $5000-6000 into it to get it back up to par. Someone flashed $12,000 in cold hard cash at me for it, so off it went.