Carburetor scoops do they make a difference?

I can honestly say that when I put the plate and foam seal to make my hemi scoop functional I felt likemI gained an extra 25 horsepower.
I have non coated headman headers so they throw off some heat but the carb seems to be real happy with what I did.

I have also driven it in torrential downpours sucking in water like crazy with no issues whatsoever.