couple of things...
I live in GA, it has been doing this since Feb, so we've gone from 40s to 90s in temp since then. new carb has a new choke. that was my first thought too, but choke is completely off after about 60 seconds. there is a sheet metal shield (I presume to block engine heat) under carb, as well as a 1/2 inch thick spacer gasket. fuel line snakes all around the front of the engine block, which is covered in sludge as seals are all leaky (has 180k on it. Yes, I smell gas, but I always have since I bought it 3 years ago. However, when I bought it, it had a 165 degree thermostat in it, and wouldn't pass emissions, as it ran really rich. I put the stock thermo in it, and it passed emissions fine, no problems for 2 years, but now this. I bet if I went down to that thermostat, I wouldn't reach the temp that's giving me trouble, but I have to pass emissions one more year (no emissions testing after 25 years). Any other suggestions? Thank you SO much for the advice.