Weird Carb Choke Issue

[DJ_Baar]

Previous Owner installed an Edelbrock performer carb (1406 I think) & manifold on this old '67 Chevy C20 PU. Previous Owner did not have a cable long enough to connect manual choke (& did not install electric).

I installed replacement correct choke cable. (Attached is picture of carb before I installed cable to choke.) Cut to correct length (and a little extra available in slack to have enough for repairs later if needed). Lubricated cable before install (motorcycle cable lube) and white grease at exposed end. Choke opens and closes with no binding - smooth operation. BUT does NOT affect engine either open (for running) or closed (for enriching fuel mixture). I can sit with air cleaner off and watch it open and close no problem but NO response to idle RPM either! Totally weird.

Only adjustment from Edelbrock is for electric choke. Just doesn't make sense? I'm not new to wrenching, have had my share of motorcycles & hotrods built ground-up (pushing 60 here & ASE certified), but this has me scratching my head.

R/DJ