Thermoquad fuel leak

[1] The dripping fuel is coming from the acc pump shooter. When you actuated the t/lever, you also squirted fuel down the bore.....which leaked out through the worn shaft/hole in the base.
[2] If the fuel leak was due to flooding or damaged caps on the body, it would leak all the time, not just when the throttle is activated.
[3] Been playing with TQs since the 70s & this is the first time I have heard/seen of a TQ wearing the shaft. I am in Oz, so don't see as many as you guys in the US.
[4] It might be cheaper/easier to find another carb or base close to that carb number than trying to fix it. Doubt a repair kit would come with a new shaft & it is likely yo have some wear. So just a replacement bush would only 'half' fix it.
[5] Swapping the base. The only 'jetting' in the base is bypass air; some carbs have the pri t/blades drilled &/or small holes drilled through the base, near the idle ports. These feed air from above the blades to below the blades, bypass air, does the same as holes in the blades. What is important is the aggregate area of the holes to maintain the correct transfer slot-at-idle position.