Tuning a Proform/Holley carb, what parts and tools?

Ran it without the cap, same old story...
Guess I can rule out the vent.
Killed it as soon as it broke up, put it in neutral and pulled two plugs. Here's pics of #1 and #2 respectively. Didn't pull any others since people in Texas tend to pull over to help out, and I didn't want a cop rolling up since this is my favorite test spot. Had to tell one guy in a Miata who pulled over, thanks but I was good, in the space of about 5 mins.

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