edelbrock to holley conversion

For a race car with a fairly high stall converter, deep gears and no requirement for fuel economy, a double pumper might be OK with an automatic. On the street, it won't be as smooth or tractable. With a tight converter and tall gears, you will have bogging problems. No amount of pump shot can compensate for a 750 CFM carb snapped wide open at 2000 RPM. It just won't work well. (You can learn to drive around this by not using full throttle at low RPM, opening the secondaries slowly etc...)

Have you read the recommendations on Holley's website? Against the outside chance they know something about their products, you may want to check it out. www.holley.com/TechService