Rather than hijack a different thread I'm being nice and starting a new one. "Not another one" I hear you mutter. The SU carb is from a day when engineers had little to work with and high aspirations (think the Apollo program and its predecessors). It is engineering genius. Simple though not trivial, relatively reliable and extraordinarily effective. But it was expensive and it was made in Britain, not here, so I don't think it was ever adopted by any U.S. automaker perhaps some smaller ones, correct me if I'm wrong. Because they were rare U.S. mechanics were lost. They required a special tool to set and balance them if there was more than one which there almost always was. I've had them on two cars: 1968 MGB-GT - I was always ambivalent about this car. It ran most of the time. But the top did not go down. It was only $600. But the real reason I bought it was wife #1 fell in love with the wooden steering wheel. 1973 or 4 (can't remember) Datsun 240Z Datsun adopted its Japanese name Nissan and my $1,500 car (bought it used in 1978 or 79) is now worth $25,000. Would it have beaten the S & P 500 over that time. I don't know for sure, but I think so. I never drove it at top speed, but I did drive it at 100 mph from the AZ, NM border to Flagstaff one early morning when I saw all the state troopers from both states having breakfast at the same diner on the border. Probably should have kept it. Should've, could've, would've. Sigh. Anyway, what cars with SUs have you had or driven?