[targa911S]

As Greg said, SU's are pretty easy to tune. no harder than webers. You need a Unisyn to get them right or have a good ear. After that you just leave them alone. You will see a lot of B's that have the single weber DGV downdraft conversion. Mostly because most mechanics dont know how to tune SU's. Mine had one on it as well. I found a nice set of SU's with the linkage and manifold for $200. Bolt on, tune and forget em. Float levels are really the hardest thing about the HIF4 carbs. You have to take the carbs off and invert them to adjust the levels. Leave it to the English...