Manifold is machined for a boost gauge, boost computer sensor, and water provisions front and rear. The manifold comes black anodized finish for corrosion protection and has had some custom fab work done in the plenum for an intercooler. Manifold will fit a 10-71 thru 18-71 roots or PSI supercharger. Manifold is 6.750" inches tall from deck surface to blower surface.
EFI port nozzle bungs measure .540" I.D. and have a 5/16-18 bolt with an alum. bracket to hold the nozzles in the manifold. Plenum has been opened up so the intercooler can breathe and a raised roof has been put in the bottom of the plenum to direct air into the cylinders. All fab work is tig-welded and looks top notch.
Rear of manifold is set for a distributor in the stock location and ports measure 2.470" x 1.875". Ports look like they have been professionally ported and are in excellent condition. This manifold has hours and hours of work into it and if it fits your project grab it and save a big pile of cash.
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.