carb adjustment

Have you checked if the secondary butterflies will open without the engine running, put your fingers inside the secondary air valve and open the throttle all the way (WOT) and look inside. either the opening in the manifold is blocked, or the secondary butterflies are stuck shut if they dont open. the kickdown probably wont work right until you have full travel on the carb linkage. The other item to check is the cable adjustment on the throttle linkage. It should have almost no slack in the cable at curb idle.