So while playing around with my carb, I decided to play with my laser temp gauge.  Pointed it at the manifolds near where each exhaust port is.  They all read somewhere between 380 and 410 at idle, except for the number 2 exhaust.  It reads around 290 to 310.  What could cause that?  This is after the car has been running or driven.  It idles and drives with the normal smoothness of a carbed engine.

The cooler cylinder is firing, but not as well as the other cylinders.  You may not feel it, there may not be a miss, but there is a power loss.

It has new wires and plugs, and I had am MSD electronic dist. and spark box installed years ago.

I'm wondering if the airflow from the fan is better over the front of that manifold than the driver side and that is taking some of the heat off the surface of the manifold.  I'll try removing the fan and see what temp I get when it gets to normal temp (and before it overheats ).