I recently purchased a 75' Scout with a 345. It has not been on the road for 8 years. I poured some gas in the carb. and some gas in the tank and it started right up. The carb. was gummed up so I sprayed some Napa carb. cleaner in it and it really cleaned up. The carb. really works well for me. So far so good. It is a Holley 2-barrel. It's the Stock model carb. that came on the 345's for 1975. I'm looking in the Scout Service Manual(purchased from Super Scout Specialist) right now to find a model number. The best I can figure it is model number 2300G. Hope this helps. Good luck..