Sand cast aluminium wedge is supplied as a raw un machined casting.
It takes the hassle of welding up the carb pad when fitting an M90 Ford V6 Eaton M90 supercharger to any squarebore Holley manifold.
When used with an AS0068 bolt on Aussiespeed® supercharger plate it converts to an external bolt pattern for engines where it is impossible to get a stud or nut on.
Even when the plenum is machined flat so the blower drive is straight to the crankshaft bolting the blower on can be difficult.
A lot of material can be removed to get the adapter thin if you are trying to get your supercharger down low.