I just picked up a 73Z with an L28 with SU carbs. I live in L.A. The guy said it was running up until about a year ago when he had the carbs rebuilt and whoever did it wasn't a Z mechanic and it never ran well. I bought it at the right price and had it towed to my place. Anyone in LA want to work on it on a partnership basis? I know nothing about engines or carbs.