I had it running for ~10 seconds today at around 3000 rpm. I noticed that all of the headers were very hot except the tube coming off the #5 cylinder. That tube wasn't even starting to get warm and all of the others were almost too hot to touch. Shouldn't all of the header tubes be about the same temp?
Chris, I'll try your suggestion this weekend when I have an afternoon to play around. I'm too frustrated with the POS to bother with it until then.