85 $6E ARAP 165 ECM Swap lean at higher loads

Hey everyone, still new to tuning in general, I've gotten the correct injector offsets for my Bosch 3 22lbs, changed the constant, and started tweaking MAF scalers to get my BLM's into shape, I'm having a lean out issue above 3000 rpm and at higher loads that result in octane pinging. I have the cast head timing settings all loaded, egr disabled idle and cruising is quite good now, wide open throttle seems to be alright as well, it's on part throttle where the int shoots up as well as the blm, i should mention im modifying my scalers as im running a walker aftermarket MAF with no burn off, basically looks like a modern blade type sensor with a single heatsink fin, i also have the rear screen removed, the air signal is very stable and doesn't jump around or anything like that, but i know the fueling is mainly done on $6e via maf tables. Anyone have any suggestions on how I should go about scaling the higher tables I suppose? Or any other advice to solve this issue?