Okay here goes, I just purchased two 4973 1971 Thermoquads which were advertised as parts carburetors. One is complete, one is mostly complete. The air/fuel mixture needles are broken in both base plates. I am thinking am easy out to remove the broken off needles. or drilling and re-tapping? Either way I need to purchase new air/fuel mixture needles. Does anyone know the part# or size of them? I see many years for them but not 1971 which I know if a one year only animal. Thank you !