Percolation? Heat soak? Don't drive during summer??
25-30 minutes of idling and revving and it didn't die, what a piece of crap... i ended up shutting it off because my wife was yelling at me that the whole house smelled like old car and that I needed to come in and eat. The temp guage was hitting 220 which is out of my comfort zone for the car as well, I wish it never got past 200* while sitting and idling, I think thats wishful thinking though.
I'm thinking the ballast resistor doesn't need to be hot as Satan's balls when the engine is running, so maybe I should start with replacing that first... the ecm wasnt to hot when I shut it down and neither was anything else... besides the ballast resistor