Professional Installation is Highly Recommended (No Instruction Include). Air Conditioning & Heat. Brakes & Brake Parts. Charging & Starting Systems. High Rise Intake 7000+Rpm Black Suit SBC Small Block Chevy 350 383 Vortec. 2.06” x 1.08” port dimension. Cast-in bosses on intake runners, can be drilled and tapped for use with nitrous. 360° single plane …