L78 idling issues

[JRSully]

an update, I forgot to mention that I am running original Motion alum v/c's which are taller and fatter than stock. This brings the stock air cleaner to almost touching and now "shrouds" a lot of heat (lack of air flow) around the fuel lines near the carb bowls and with the new intake gasket now allowing the heat crossover to function, just exacerbated the problem . Tried an experiment, pulled the air cleaner and wrapped some alum screeing around the air horn. Drove the car for about 45 min's, about 80 degrees through all conditions (stop and go,h'way etc.) and the problem almost entirely went away. I think the fuel is getting boiled by the air cleaner base and valve covers, too much heat in the vicinity. Going to install an air cleaner spacer on top of the Holley and put the heat shield on and hopefully that should do it. Wilma, for once, the weather was picture perfcet here on LI today. Thx for tips SULLY