A good friend has a '71 240 with the dual SU carbs. He had the motor rebuilt by a shop that supposedly knew what they were doing, but he's had nothing but trouble since then. Apparently, they put a new cam in, the carbs were set up all wrong, and the choke was screwed up as well. Its running now, but not that well. He's considered switching over to fuel injection, do you guys have any suggestions on setups that have been used before?