[decooney]

I have a return line, and a Turkey Pan to help cool the float bowls, and when I'd get to a very specific stretch of road between Fernley and Sparks Nevada (every year) mine does the same. Loads up, and runs like the fuel is just boiling in the bowls. Take it out at night and run it around, when it's cooler, and see if it loads up in the same way. Hmmm, vapor lock. Dry / Hot-Heat / Hot pavement / Thin air... same scenario. Over seven years with my car (rarely driven though) this situation only occurred for me in the desert in the exact same spot and stretch of road, 4,300 foot elevation, same time of year and temp, two years in a row and nowhere else near my home - knock on wood. Well, we have a 105 degree day today coming... we'll see.

Good tips from many folks here on this topic... I may end up replacing my braided line from the fuel pump to the carb fuel log next.