When I press the gas pedal slightly (1/2 inch or so) from a stop, the car lunges like the accelerator pump is working ok but it then boggs down. If you stomp it it goes just fine. I assume there is something wrong with the transfer from idle circuit to the run circuit of the carb.
This is an Edelbrock 1406 on a 351c in a 1970 Cougar. Vacuum advance is plugged into the ported vacuum. A little history, the car had a Holly
600cmf on it and ran fine but was flooding easily and running ritch. Tried to adjust the float but turning the screws didn't make any difference in the level. Pulled the needle out and the orings were gone and just some black hard stuff was left. Put in a kit and had a terrible flat spot just off idle (first time rebuilding one) and gas mileage was like 9. Bought this Edelbrock no ebay so maybe it has a problem.Any suggestions appreciated. Bobby bbusselman at hotmail dot com