Chrysler 318/360 V8 RPM AIR-GAP 340/360 (1500-6500 rpm) The First Dual-Plane Manifold Design for High-Performance Street with our Proven, Race-Winning Air-Gap Feature Designed for 340-360 c.i.d. Chrysler V8s and 318 c.i.d. engines with 340-360 cylinder heads, the RPM Air-Gap incorporates the same race-winning technology that's been used on our Victor Series competition intakes for years. The air-gap design features an open air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power. Accepts early-style waterneck only. Will not accept stock Thermo-Quad carburetor. Will not fit 1992 and later Magnum engines. Includes nitrous bosses. No provision for exhaust heated chokes and no exhaust crossover. Carburetor Recommendations: Edelbrock Thunder Series AVS or Performer Series carb, 650-800 cfm (see Carbs & Accessories), use our #1481 or #1843 Throttle/Transmission Lever Kit. Installation Notes: Recommended intake gasket: Edelbrock #7276, Fel-Pro #1213, Chrysler #4397642 (or equivalent) for 340 and 360. Manifold height: A-4.9", B-5.8" see A/B Measurements. Port exit dimensions: .98" x 2.16". 1979 and later rotary A/C compressor will not clear waterneck.