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Hi Linda;
There is a bit more to it than just the screen below the needle valve in the carb, if you find problems there then I would say the carb rebuild is suspect. I think it was Miles that said, that although the needle valve from a Honda Gold Wing carb rebuild kit will fit, it restricts flow, starving your engine at higher RPM's. And, if the tab on the float is bent to much it may be closing the needle valve to soon, causing the bowl not to fill.
Also, you didn't mention that you changed the fuel filter. The fuel filter should also be looked at. When checking out the fuel filter, pull the fuel pump and filter as one unit. (removing the heater fan motor is the best way to get to the fuel pump on the Sedan, more hose tips on a fuel pump have been cracked or broken off by trying to remove the filter with the fuel pump still in place) Then reverse the flow to see if there is any junk in the filter. Then check the flow of the filter. Even a new filter can collect debris after all the work you did to your car.
If every thing still checks out, and you're sure sure the carb is good, look at all the lines for crimps.
Driving down the road and having a rock jump up and ding your fuel line has happened before. I even found a fuel line that had been almost flattened by some one putting a jack stand in the wrong place.
Bill