How tight are you guys running your carb to scoop clearance?

Right now I have about 6-3/4", which puts me about 3-1/4" below the hood plane.

I need to get a plenum spacer on this Indy Mod man intake, so I was thinking 2" would work.


With a 2" spacer I would be 4-3/4" from the scoop, and 1-1/4" below the hood plane still.


What have you guys ran that worked and didn't work?


Specifically this is a 62 max wedge scoop. My measurements are to the tall wide portions, not the shorter center rib.