If it only runs with the choke cuttin' off your intake air, you have one of two problems. Either the carb can't supply enough fuel to mix with unrestricted inlet air, or you have air leaking in after the fuel is introduced at the carb.
Can't hurt to check the carb to manifold and manifold to head connections to make sure they're tight. It's so easy and takwes so little time, I'd do it first. A mechanical check should be good, but you could follow up by spraying a little carb cleaner around those connections with the engine running. If she speeds up in response, you've got some more tightening to do or might need to replace the gaskets.
Where you've been at the fuel bowl, though, I suspect more strongly the fuel supply is at the root of your problem. Start at the top and work your way down. Get rid of any clutter and stuff in the tank that might cover the inlet to the sediment bowl. With the valve in the open position, blow out all the passages on the sediment bowl and clean the screen. Blow out the line from the bowl to the carb. Pull the inlet elbow into the carb, the one the fuel line attaches to. It should have a very fine cylindrical screen on the carb end. Flush and blow that out.
Beyond that point, you'll need to have a carb rebuild kit in hand. You'll likely need it for the bowl gasket anyway, and your problem may very well be with the float needle, which is in the kit, too. Clean things up and blow them out while you're into it, paying spceial attentino to the critical passage that the float needle closes off and check your float level.
There's other things you can do/check/replace while you have the carb apart, but those basic things ought to get you running reasonably strong.
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Today's Featured Article - The Fordson F Ignition System - by Anthony West. A fellow restorer contacted me earlier this year asking for some help and advice on a model F that he was restoring. He had over a period of months spent a fair amount of his hard earned cash on replacement parts for the old "trembler" ignition. Sadly though all his efforts seemed to be a waste of time and money as he still couldn''t get the temperamental old thing to run correctly!! If i said that this was a little frustrating for him that would be "conservative" in fact the problem had reduce
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