Description
Supercharger base gasket to manifold gasket, manufactured by Jon Bond Performance. Fits Holley/B&M/Weiand/Mercruiser 250/256. This is a thick aramid rubber fiber gasket. Will not swell with different fuel types. It also works very well with insulating against the heat soak from the supercharger.

Holley, Weiand, B&M Supercharger G1 drive snout gasket
JB Performance 6-71/8-71/10-71/14-71 intake gasket 