Originally Posted by OLNOLAN
Here is another; the smog quadrajets have the plugged idle mixture screws. Once you get the plugs out, then you have to deal with a recessed tamper proof screw. I've run into torx style and the flat blade style. I used an old brass vacuum fitting, filed a flat groove to fit the idle mixture screw. I later crimped it onto an old GM points adjusting tool for flexability. Cost $0.00
while the Mustang is wating for its body to shine again i have found a new use for the 347. Chev enthusiasts would say thats all the Ford is good for.