Thermoquad tuning on 318

I gave you some tips in your other post. Did you check those out? Happy to help, but not when you advise folks to check things.....& they don't. That wastes my time & everybody elses'.
[1] off idle stumble. Engine idling, gently close the choke until the engine sound changes. Wire/lock the choke blade in this position. Test drive. If stumble is better or gone, mixture is lean.
[2] Sec bog. Does the dash pot [ pass side, rear of carb ] pull in at idle? If not, it is defective. It can still be defective if it pulls in if it is old. Rubber inside goes hard & is slow to release.
To test: remove connecting link & wind up AV spring to 3 turns. Test drive.

Report back with results.