It's not late - I'm still scratching my head on this! Based on the responses I've received above, we agree that the downward angle of the slide bar linkage is not right. Bee71Mopar inferred that 383 and 440 brackets are different, do you mean the height at which the throttle cable mounts is the difference? If so, then I would think that because the stroke/deck height on an RB motor is higher than a B motor, than the 383 bracket would be higher to compensate for the shorter stroke/deck height. If that's the case, then I probably do have the 383 bracket which is pushing the linkage up too high. I should then get a shorter 440 bracket??????? I want to say again that the kick down linkage,including adjustment and angle was perfect with the Holley carb and I only now have issues because of switching to the Edelbrock. The difference is with the carb - the throttle cable bracket on the carb must be set at a lower height than the Holley. Does anyone know this for sure?
Thanks again everyone!