/6 when hitting the accelerator...

Has it always done this or did it just start?

If this is a new problem, think about what you monkeyed with last and put it back. If you haven't changed anything, then it is reasonable to assume something broke. You need to fix what broke, and not misadjust something else in hopes that it masks the real problem.

A failed vacuum advance unit (or vacuum leak) will cause this exact symptom. Test and/or replace the vac advance unit and vacuum line.

When was the last time you gave the car a thorough tune up? I would only consider rebuilding the carb after a thorough tune up (points, plugs, cap, wires, filters and PCV valve)

A clogged fuel filter will hurt you under high loads, not part throttle.