Replaced throttle cable on my 68 gto because the old one was not getting the carb to open fully when pedal is depressed to the floor. I am having same problem with the new one however. How do you adjust? looks like no adjustment at carb. Is it at the pedal? The motor is a 72 with a quadrajet. Intake is a stock I think 68 with part number 485912 not sure on carb. Just feels like pedal movement is not enough to open up the carb. Could I and will it work if I bend the pedal rods? could they be bent?