Sounds like the link that Travis left for you, would be a good one to find the part you're looking for. But if not, you can try Fox Body Resto. They're usually pretty good and have a large assortment of parts, Mike. SCT Tuner.
70 BOSS,with a 71 429 SCJ 8.0:1 compression with an F-3 Pro Charger and 39lbs. of boost. Rectangular Tube Chassis, Custom 17" Magnum 500 Wheels. Just way too much to list, but what a ride. P.S. Hang on tight!!!