I have an 87 V6 Dakota with a Holley 6280 carb, similar to the 2280 except it has an O2 feedback solenoid operating the supplemental fuel jet rather than vacuum control.
Here is the problem. The fuel escapes from the float bowl after the engine has been shut down and allowed to sit for period of time. The fuel level sinks down to the top of the main jets, about 3/8" from the bottom of the bowl. I am not sure how long this takes, but overnight will do it.
Is this normal? Would the heat of the engine after it is shut down cause the fuel in the bowl to evaporate out the bowl vent?
I just removed the top of the carb and cranked the engine without starting it to raise the fuel level to where it shuts off the inlet valve. I covered the bowl with plastic and I am waiting to see if the fuel escapes from the bowl when the engine is cool. Temperature outside is about 60 F.
While I am waiting to see what happens, I thought I would check with anyone who might know if it is normal for the fuel level in the float bowl to drop after a hot engine is shut down and allowed to cool off.
Thanks, Jack