Sniper Carbureted Fabricated Intake Manifold Small Block ChevySingle Plane 1 x 4500 With Interchangeable Flange Plate Silver Finish With Sniper Logo Features:NEW "Modular" Removable Top Plates options for Small Block Chevy now available (1 x 4150, 2 x 4150, and 1 x 4500 flange options) 3mm (1/8") thick T6061 Sheet Aluminum construction, strong and durable even under high horsepower and boosted conditions 100 TIG weldedEmissions Note:This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.CLICK THIS LINK FOR.