Help me find the umph in my 360

Nothing wrong with Edelbrock or for that matter Rochester carbs. You are correct, just gotta learn to tune. Obviously you race using Holley carbs because jet changes are easy. To do that you have to catch the float bowl fuel when you remove the float bowls. On the Edelbrock/Carter you probably only need to loosen two covers to swing them out of the way to change metering rods, and no spilled fuel. If you need more extensive fueling tuning, remove the top cover to replace the jets. Again no fuel spilled. Just gotta learn to tune. Comparing a 650 CFM Edelbrock to a 650 CFM Holley should produce about the same power. Same for the 750 CFM models. I hear/read the Holleys flow slightly more air. On a race track the difference is probably noticeable but on the street, not likely. DP? Really? Again on a race track for throttle response, OK. But on a street driven vehicle they are harder on the fuel gauge.