>I have a neighbor who runs 2 edlbrokes on a 440 in a A1oo who can`t seem to get them right
LOL, the Eds are pretty sensitive to basic adjustment. On mine, I set each for the exact same transition slot exposure, about .020. Then use a vacuum gauge to set each idle mix separately to as close to the exact same vacuum as possible. Then hook the linkage so that each moves exactly together (not progressive on my setup but probably could be used like that) and the linkage set to just slip on/off without moving the primary throttles. With the linkage hooked up, back off the stop on the rear carb and let the front curb idle set the idle speed for the pair. Touchy, idles and runs well when set right. If it's off a bit you get the rupp-rupp like it's got a big cam LOL. Fun for car shows, PITA to stage the car on the track.