65 Dart Help Please

Hello,

I joined this site a while ago but have been super busy and havent had a chance to work on the dart at all but its getting into fall and i would like to have it driving soon.

Its a 1965 Dodge Dart GT with a 225 slant six with a 1brl Carter BBS i believe carb.

My problem is that the float for the carb which is made of copper? is leaking and floods the carb out. I am having trouble finding a replacement. I dont know if i want another one of the same kind or if i want to get a rubber or cork one, or whatever is available. I rebuilt the carb last summer but it didnt have a replacement float in the kit.

Where can i find a float? all my local part stores cant seem to find one. Maybe one of you fine people here has a part number for me or maybe a website for parts.

Thanks for reading my long post and any help you can offer.