Holley 300-66 Strip Dominator Intake - Chevy Small Block V8Pro Jection TBI Intake Manifold High Rise Dual Plane w EGR 1987 later with Cast Iron Heads Part Number: 300 66 Pro 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", Rear 5. 40"Port Size: 1. 89 height 1. 15" width EGR Provisions Utilizes late model alternator and A C bracket