I would start by getting a good battery and not using a "jump box". That alone can cause problems.
Are the slides rising and falling smoothly? Are the diaphragms good, without any buckling or rips?
Are you certain the idle mixture passages are clear, and the screws have good o-rings and springs/washers positioned correctly?
Collars/Needle Jets in-place?
You may still be too rich with 110 Mains.
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