Actually, when I worked at Armstrong's('78,'79,'80), we had two Leffler pavement sprint cars, one Leffler dirt sprint car, one modified Mitchell dirt sprint car, one Shores dirt sprint car, one Leffler champ dirt car, one King champ dirt car, one King midget, one Vogler midget, one Edmonds midget and, of course, two March/Cosworth Indy cars, three Lola/Cosworth Indy cars and a Wildcat/DGS OFFY Indy car. The most interesting and successful cars were the pavement sprint cars which had two inch left offset engines and weighed around 1475 lb. The only real competition, we had, was from the Jet Engineering Titanium roadster, which had to weigh 1600 lb. Towards the end of the '79 season, Paul Leffler modified Greg Leffler's #43 car to a full offset roadster and weighted up to 1600 lb. I had some special offset wheels made for Bigelow's #1 car and offset the engine to the right of center. I actually had more left side weight on Bigelow's 1475 lb. car than Greg had on his 1600 lb. full offset car. Not sure how I could have gotten down to the 1400 lb. minimum ..?? Bettenhausen's car looked nice but never ran very well. It did have one good thing though. It had a clutch and "on board" starter, which should be mandatory on all sprints and midgets.