[dscott]

Jim, I would put the timing at about 35 degrees @ 3000 rpm. Don't worry about the timing at idle. You didn't say if the car is running poorly or if you are just getting heat inside the cockpit. Normally I use a heat insulation under the carpet to keep the engine heat at bay. It will get hot on your feet otherwise. It's very common to have interior heat on these cars. That's where the insulation works great. The problem is probably more in the timing area though. High heat at the headers is usually a sign of the timing being off. If the carb was lean you don't normally see a problem until higher rpm.
Don