In 1968 or so I worked on a Trans-Am Barracuda that ran in the San Francisco Region SCCA Series. It was an ex-factory car and had been acid dipped to make it lighter. I'm almost 70 years old now, so I probably have lost a few details and what ever I say should be taken with a grain of salt, but here goes. The engine we used was a 304 CID. Some calculator work can verify this. I think it was a 273 block with a 340 crank. Remember the class was 5 liters or 305 CID. I think we ran a 4 bbl Holly on a high-rise manifold. The headers were full length tube and what I always complained about was that they were almost half crushed under the car because it was so low. I can't remember the owners name, but it seems he could not afford to replace the exhaust system. The rear end was a 8-3/4 Sure-Grip modified with Lincoln Continental discs. I think it had 4.10 gears. The doors were welded shut, and people were always pulling on the handles so the handles stood out about a half inch or so from the thin door panel. All of the glass was faired in with body putty. This car at the time was what I called Petty Blue, and I want to say it had a white racing stripe over the drivers side, but it's been too long to be sure. In my opinion the operation was under funded and I never saw it run well enough to decide if the driver/owner was talented. I was associated with the group for about a year, maybe less, then moved out of the San Jose area. With a growing family at the time I soon had other priorities.