Help!!!!

Gauges installed and working. Now the new or rather old issue that is driving me freakin bonkers... Starts okay,still a little slow. I have hardly any idle now and when I put it in gear it either stalls or has no power what so ever. I added a clear glass fuel filter to see if the gas was a mess(its not). Finding a carb for this thing has turned out to be a crap-shoot. Yeah everyone has a great price on them yet they can't get them from the manufacter.Does anyone know where I can find a 4bbl intake and carb that will work on my engine that isnt going to cost me a small fortune? I hate to say it but I am kinda desperate!!! I would love to have it in time to make the cruise tomorrow night but I am slowly watching that fade away. If you are in or close to Polk county and can help please let me know.I will check back again tonight before bed and first thing in the morning. I know I am wearing out my cry for help but really do need it!!!