uh... is base plate pattern different on a 94 and a 2300 ??

 

I only really know the 1948-1952 trucks but if the fuel pump is the same then you might want to check and see if the one or both of the valves in the fuel pump is stuck. I have had this happen to me 3 or 4 times now. Sometimes if the fuel dries up in there they just get a little stuck and need to be poked free again but you may need to replace them.

 

Another update. I have verified the fuel pump is functioning properly. The holley 2300 that arrived today is way wrong. The mounting flange is different, along with the aircleaner mount and several other things.

My carb doesn't look like the 94 I've seen pictures of. There are a few numbers cast into the throttle body, but they're almost unreadable. However, I do have what appears to be a rebuild kit for my carb, and the components are currently soaking in cleaner. I'm going to try reassembling it tomorrow, here's hoping for the best.