[jtmarten]

I checked it while running today. Kind-of strange, getting 10.3v at idle in park, but in drive at idle, 11.2v. I found that someone in the past spliced into the power feed for the dizzy. I'll have to see where the splice goes and kill it. They used a butt connector for the splice, which may have had some corrosion in it. Its the only thing I've messed with since the last time he drove it, and it drove fine today, before it would start dying after 3-4min. Minimally, I'm going to remove the butt connector, and solder/shrink tube the connection.
Thanks for all the help!