Yes Fred you are correct about the Bronco Buster. I was a friend of Doug when he was building the Bronco Buster- I had talked him inot building me an engine. He wanted to sell me his '65 B/FXer- shows you how smart I was (am)... Anyway, he went against the conventional thinking at the time and use the big GMC-671 Blower while all others running small blocks (Chevys) used the smaller GMC-471. He knew very well that the engine was nothing more than an Air Pump and the more air you got through it the more horsepower it made. I was up in Detroit one night and went with Doug and Roger to a Funny Car featured race at Motor City Dragway. I was in the tow vehicle following Doug. When we got at the end of the track, Doug was already out of the car. The first thing he asked Roger for was a cigarette- I didn't even know he smoked. Then he said, that was the fastest that car had ran. We were still out on the strip and had not heard any times, so I asked him how he knew that, and he said that the Throttle had stuck open! 
Later after he went into business, he built a 289 HiPo Top Fuel Dragster for one of his customers. Boy, those were the Good Ol Days....