Mitch,
I may have suggested this before, but I'd give Pro Systems a call. You can get a carb "built" around the specs of you engine. They built one for my 422" SBC and I was thrilled with it. Added to that, the A/F mixture was BANG ON when we dyno'd the combo (600hp pump gas).
https://www.prosystemsracing.com/
To put my money where my mouth is, I may very well have them build one for my L88 and put the original 4053 on the side.
Tim