Yeah you're cooking the engine compartment by running retarded timing down the freeway. Add 10 degrees of advance and it will cool down a whole bunch. We just ran some dyno tests the other day where an extra 10 degrees of timing cooled the headers down from 1700 degrees to 1200 degrees. This was at 2000 rpm with a small load. Exactly what your engine is seeing going down the freeway.
Andy,
Are you saying add 10 degrees now, or go to a vacuum advance, and do it that way?
Because it also heats up in traffic.
Forgot to mention, it’s got an m1 intake and a “ 1000 cfm” quick fuel carb.
