1991 Lebaron Convertible - Bogs Down on Acceleration/Stepping on Gas

Just bought a 1991 Chrysler Lebaron from a car dealer who was the original ower. Car mainly set up the past 2 years only driven about a 100 miles. Currently has 146K miles and maintained regularly. I drove the car about 50 miles and then it started to bog down when giving it gas to accelerate from stop, where car would run but would not go. I turned it off and then would start it back up would accelerate slightly then bog down again. Took back to car dear who has an auto repair shop and thinks it is gunk in the fuel line sockets. Once dealer gets it running and accelerating normally again, what is a good aftermarket fuel line cleaner to make sure that the fuel system is totally cleaned out?