Try contacting Mike's
by Carb Types Catalog
It will take a lot of experimenting but this looks like the basic shape. #76
View attachment 1715845581
Push comes to shove buy a used / rebuilt carb and take the parts you need.
I know 30 to 50.00 for a piece of plastic seems like a lot, but you will probably never need to do this again in the next 50 years. That makes it only 8.3 cents per month
I love you man, AND you can have my beer!!!PM me your address. Free ,+ shipping. View attachment 1715845888