3 The air gap design allows air to flow under the plenum to prevent heat transfer from the engine resulting in more horsepower. 4 Intake is a dual plane square bore style and works with all 4150 Holley style carburetors. 5 Port sizes measure 2.06" x 1.18" and the intake measures 4.65 tall. 6 Other features include four corner water outlets, dual distributor hold down provisions, accepts late model water neck, A/C, alternator and HEI brackets.
7 Does not have provision for exhaust style heated choke. No installation guides are included, highly recommend to seek professional installation. Fit for 1996-up Vortec engines. All accessories on the picture are included. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.Please inspect your order upon receipt. If you have any problems or concerns whatever with your order or products, please message us and give us a chance to assist you before you leave any feedback. We are a powerful factory producing auto parts, and we have a professional sales and after-sales team that can provide you with excellent products and services.