I have a 72 ElCamino w/ 400/350. The engine has performer intake w/ Holly 750 DP. The previous stock kickdown (detent) cable was not connected. I've rebuilt the engine and trans and have a B&M replacement cable that I'm trying to hook up. The GM manual says to put the carb in WOT position, position the end of the long slot in the bracket that attaches to the carb on the carb pin, and snap some clip closed where the cable goes thru the holding bracket at the carb. The B&M cable is not quit the same and if I position the end of the long slot on the bracket on the carb at WOT, this is really pulling on the trans cable (I know there is a spring inside the trans that pulls the cable back). In fact the trans spring/cable-pull is much stronger than my return springs on the carb. I've even shortened the return springs a couple of times to "strengthen" them but still, if I set this thing the way the book shows, the trans cable is what will be adjusting my throttle plate, not the idle adjusting screw. Has anyone else had this situation? Thanks in adavance.