Racer made this plate from a .750" thick piece of billet alum. and designed it to set a roots supercharger back 2.00" from stock manifold stud holes. Lightening pockets have been CNC machined into plate to reduce weight. Opening in plate is 9.750" x 4.250". Plate will help if your blower belt is a little on the long side as well eating up a 1.50" of belt due to the thickness of the plate.
Set back is O-ringed on the blower sealing surface and attaches to the blower manifold with eight 7/16" bolts. Front of set back plate has been contoured so the air from the blower will flow smooth into the intake.
If wanting to see if your supercharger will work with this set back plate you will have to measure from the center of the second set of bolt holes on the blower to the front edge of the opening.
This set back measures 7.125" to the edge, 7.750" to the center of the O-ring groove and 8.375" out to the front edge.
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.