Mercury Carburetor Velocity Stacks

Land & Sea Mercury Carburetor Velocity Stacks.

"Add power and looks at the same time!"

Radiused inlet velocity stacks for V6 owners wanting to remove their air silencer bases from the carburetors. Stacks fit stock V6 2-bbl carbs.  Their flow improving radius and air straightening effect increases airflow while reducing intake turbulence (and “fogging” problems). 

They increase power by adding about 10 cmf (at 1.5” hg vacuum) to the flow of each carb venture (60 cmf total).

Easier maintenance and quicker jetting changes! Jets should be increased two sizes to compensate for increased airflow!

Stacks are simple to install (and include provisions for shift linkage and cowling brackets where required), so the stock covers can be retained.

Note: A primer is needed for older Merc engines when choke assemblies are removed.

30th Year Anniversary Sale! $99 until December 31