Hard HOT starting

With the key on, the voltage at the coil is somewhere around 7 volts (Start 1). Make sure you have a full 12 volts at the coil when the motor is cranking (Start 2).

A decade or two ago, I had mine hooked up wrong and it didn't bypass the ballast resistor to give a full 12 volts when cranking. The truck was always really hard to start when warm until I fixed that.

I live in a moderate climate. Blocking the heat crossover in the intake, adding a 1 inch phenolic spacer under the carb, adding a return line and insulating my fuel line around the engine help even more. It also improved the drivability and performance. I used a manual choke on really cold days.