Engine Dieseling - Options?

@RustyRatRod - I already set the car on fire once, wont do it again - will check and see what I find

@jpar - maybe it was wishful thinking but it sure seemed like the octane boost helped, but it was probably 40ish in the garage yesterday, car was running around 170ish then, would climb to 190 off with the heat soak - I looked a little and couldn't find anything around me that has any high octane - still more looking to do
Baxter's Auto Parts has it. it's expensive and you got to buy it by the 5-gallon jug...
Probably like 12 bucks a gallon or something. You could also go to a small private airport and get 100ll... it's usually between 5 and 6 bucks a gallon. You might have to put a little more in of that since it's a little bit lower octane but the LED sure helps as well... I used to run it exclusively but it's just too much of a pain in the butt to get that much to run it on it exclusively...