I can't tell you what's wrong other than after I installed my new Throttle Body & C&L Plenum my mounts for the throttle cable assembly were too low & kept getting stuck on a vaccuum hose extruding from the rear of my Upper Intake Plenum. I resolved the issue by inserting 5 washers under the bracket around each of the 2 bolts holding the bracket in place. Now my cables sit higher up & my throttle's normal again. Prior, I couldn't go WOT.