We found an interference issue with the factory throttle-cable bracket and the Cobra valve cover we were using. Here, you can see we tried a chrome plated, stock-style FRPP piece. We even went so far as to try a stock stamped-steel part, but that wouldn't clear the rockers. After some research, we may have solved the problem by using a thinner EGR delete spacer. The current piece that we sourced from Accufab is more than 2 inches thick, while the new one we just ordered is just 3/8 inch thick. This should move the bracket inward and out of range of the valve cover.