Holley 670 SA tuning with wideband

Dunno what A/F ratio you are trying to hit for acceleration. Read up on the A/F ratio for acceleration; being a lot richer(lower A/F ratio) than for static/cruise levels is normal and necessary. Google 'Air/fuel ratio during acceleration'

And be careful to not get hung up on the numbers.....SOP (seat of the pants) feel is an important part of the tuning too.