Hi guys, I have an 83 mobile traveler rv with an e350 chassis. I have a 460 with 69,000miles. I have put 8000 on it since I bought it. It has run great up until recently. It runs and idles rough. I ran out of fuel in one tank, and it has not been running right. I have changed distributor cap and rotor, and plan to change plugs and wires tomorrow. I hope it is a fowled out plug. I also bought it in Colorado and have always had it above 4000ft elevation. Now I am on the Oregon coast at about 50 ft elevation. Does my carburetor have to be adjusted? I also thought maybe I sucked something up in my fuel filter when I ran out of fuel, but this isn't like my 01 f150, and I can't find the fuel filter. I looked on the frame, but there is some sort of relay/pump?, I assume it's a pump, or the switch to switch tanks? But there is no fuel filter. My wife and I have been on the road for almost 4 years and live in our rv, so it is extremely important I keep it running tip top. I have had no issues at all with it until now, and have never really worked on her, and it's the first carburetor I have owned. Also, I have to get a different spark plug wrench because my 13/16 is too big. Does anyone know what size I need? Any and all help is greatly appreciated. I have been using this site for years now, but this is my first post. Thanks again.

 

You made me curious
Let me recommend Rock Auto as a useful place to see pictures of what your part looks like and get some specs, even if you're buying somewhere else.
It looks like the standard filter is a sintered bronze type on the Carb fuel inlet. Your incoming fuel line will screw into a cylinder-shaped housing on the carburetor body, unscrew the housing and you're in business
You might get a touch better performance/economy with some adjustments, your stock carb is a blessedly electronics-free Holley so lots of online advice aimed at boy-racers is out there if you sift it carefully, usually a vacuum gauge and some patience will serve well enough for a working truck.
Your plugs will need a 5/8" or 16mm wrench.

 

Thanks for the info. I'm going to get plugs and fuel filter today. If it still runs rough, then will look into adjustments