1984 Tioga 28 Ft Motorhome . E350

Update.. since draining the gas it runs much better so reposted.Over 100 responses so reposted.I have a 1984 Tioga ford e350 motorhome for sale with collector plates . It ran perfect when I parked it a year ago and no seems to be running really rough. It has a 460 engine in it with 56,000 original miles on it with a working generator and a AC unit that is currently off of it but comes with it and functional.I am the second owner and the body is perfectly strait . Inside is perfectly stuck in its time period and ready to be revamped . Since it needs a tune up in order to take on a trip I have replaced these things . - new alternator - new full pump hose and wiring to fuel pump -new distributor and cap -new spark plugs and plug wires . - newer secondary battery - and I have manifold gaskets but not installed yet. - has air conditioner that’s not on at the moment but works and comes with it . ( had to reseal ) I have spent $600 on parts so far and still have the original parts that. R