Carter 4638 ??

4mulas said
For a 1969 383 auto with A/C

thanks!

oldkimmer said
That 1 is left hand thread. The 2 at the bottom behind the plugs hr right hand thread.

Thanks, I suspected it was left hand but wasn't sure. Likely why it's broke. This came from the same barrel of stuff that has been sitting in the shed for 20+ years. I sold a FABO member a 4611 last year.
Looks like a 10-32 LH.
Parts Manual download here......
www.walkerproducts.com/wp-content/catalogs/carburetor/by-model/carter.pdf

Decided to go ahead and mess with it. 1st Picture shows LH thread. Go the hole pretty well centered and soaking in PB Blaster now. Notice the screw is not centered in the boss.