Carb Heat Soak

toolmanmike said
It's the puppy pee gas we have now days. I run no ethanol in my 2 old cars and it's still an issue. Like S'cuder mentioned, I can shut the engine off and hear the boiling under the hood. I have a stock 2 barrel on my 318 and a AFB on my 273. They both will do it. If you let them sit over a few days the bowls will be dry. I really need to install a electric charge pump to prime them. The fellas that have done that say they work well.

Same here, E-0 gas in 90 octane only for the last five years. No pinging, just percolating.
If it's been more than a couple days since driving it, I fill the float bowl in the AVS through the vent with a little funnel. That way it fires right off instead of cranking it for 20 seconds until the mechanical pump fills it.