Manifold comes machined for an SFI burst panel. If not running a SFI burst panel buyer must purchase separate #2000-0008 to block off the hole and provide a backfire valve in case of a blower hi-cup.
Manifold is 4.90" from deck surface to blower mounting surface. Manifold has been drilled and tapped 1/8" pipe in the rear of the manifold plenum for a boost gauge. Ports measure 2.375" x 1.625".