msd ign

in 1974 i put a msd ign box on my 318 van .it was a direct fit just unscrew connector from old box [which i left on fire/w] and screw connector on to new msd box..id like to buy one again for the 73 duster..does msd still make and sell a box such as this still..does anyone have a part number for this application,,thanks a lot..j