Thinking about turbo on my/6 again...

My current thoughts are to try to utilize the NOS BBD I have for this engine already, I figured it's a lil rich for it as built n/a, because it's nos for a 70s 318 truck with "heavy duty emissions" (which back then means it hardly even had any emissions crap.... A carb meant for a 318 on a 225... That should give me some leeway shouldn't it?