Stumped and Frustrated with a Holley 670 Hesitation

How did that make it whoosh?
-I disagree about Holleys being touchy.I think thats a blanket statement. Of all the carbs I ever worked on, I think that Holleys are the least touchy. I bet I havent had mine off or apart in 8 years. Thats like 80,000 miles. Probably more. And it was born in the 70s. And it sits all winter, sometimes 5 or 6 months. Sometimes with a foot of snow on the hood.
-Now;new Weed whackers have touchy carbs. The new ones are set so lean sometimes they wont run right, even when new. And every time you bring it out,hey,bring the screwdriver too.
-But circuits in the 3310s are so fat;as long as the filter is doing its job, fugitabowdit.
-If yours is touchy.....
-end of rant