I am going to talk with a local carb shop monday and see if they have the parts to lean out the edelbrock some,I am more familair with holleys and can tune them but I have never had a edelbrock apart. Since it seems to be loading up on idle I need to see if the needle valve is shutting off and not dumping down the carb,I have a 750 holley on a 390 ford and it did not load up on idle but I had to jet it down 3 sizes to get it run the best and get decent mileage. Jeff