SU HS2 velocity stack

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HS2 "inside the air cleaner" velocity stack

This is a velocity stack for HS2 SU carburetors to fit inside the air cleaner.
I was inspired by the HS4 version available on thingiverse here:
https://www.thingiverse.com/thing:4274619

This is cheap & easy horsepower. You can see some dyno results for the HS4 MG case here:
http://mgaguru.com/mgtech/power/pp104b.htm

Furthermore, many user's have reported quieter carburetor noise. This, to me, is indicative of reduced turbulence at the carburetor inlet and therefore must be accompanied by improved flow.

In any case, I am certain that it will not detract from po