Strip Dominator Intake Chevy Small Block V8 Pro-Jection TBI Intake Manifold High Rise Dual Plane W/egr 1987-later with Cast Iron Heads HolleyPro Jection Tbi Intake Manifold High Rise Dual Plane w Egr 1987 later with Cast Iron Heads Features and Benefits: High Rise Dual Plane Design Power band: Idle 6000 RPM Holley Pro Jection Tbi Mounting Flange Height: Front 3. 91 inch, Rear 5. 40 inchPort Size: 1. 89 inch height 1. 15 inch width Egr Provisions Associated Comments: Utilizes late model alternator and A C bracket mounting provisions. Has vacuum taps off manifold runners. Extra installation