Hot soak fuel condition,edelbrock

[leftybass209]

I read through some of this, but there will be some redundant info in what I list I'm sure:

Did you use a heat gun to check the temp of the carb at temp? I used an isolator gasket and could hold my fingers on parts of the carb after install; before it was too hot to touch.

Verify your fuel tank is venting properly, a new caps vent system has too much pressure on the springs to effectively vent the tank, many times it must be disassembled and have the springs cut to better vent pressure.

Ensure your engine temp is accurate, the hotter it is, the hotter everything else is.

New fuel sucks, but it's not so bad that with all these fixes it would still be an issue. My truck has idled in 109 degree Temps shut off, turned on, and ran hard without any issues with CA low or mid grade fuel.

Some of the "fixes" to your carb may be aiding an issue.

If all else fails, find a Quadrajet or Holley and see if that helps.