Warm Engine Idle Issue

Sounds like possibly the fuel boiling? My 340 dart was doing the same thing on warm day, had hesitation and not idling well, I opened the hood and took the air cleaner off with it running and had fuel coming out the accelerator pumps on my holley carb. I shut It off and fuel continued to squirt out both accelerator pumps. After it cooled down it stopped and was back to normal.