Designed for 1969 and later 351 Windsor Ford V8 high-performance engines with Edelbrock heads, OEM 12- or 16-bolt heads or equivalent. Will not fit "Boss 351" Cleveland. Manifold not equipped with EGR. Aftermarket 4-bbl carbs are not compatible with Ford Auto Overdrive Transmission (AOD) unless used with Lokar bracket SRK-4000, see note at bottom of this page. Carburetor Recommendations: Edelbrock Thunder Series AVS or Performer Series carb, 600-800 cfm (see Carbs & Accessories), for auto. trans. use our #1483 & #1491 or #1844 & #1846.Installation Notes: Use 12-bolt intake gasket set (Edelbrock #7220 recommended). For van installations use OEM Ford "van" intake gasket setwill fit early 16-bolt head with Ford 16-bolt intake gasket set. 1" open carburetor spacer, our #8710, is recommended when hood clearance permits. Manifold height: A-3. 55", B-4. 75", same as stock, see A/B Measurements. Port exit dimensions: 1. 02" x 1. 82".Pit Stop USA offers Edelbrock SB Ford Torker II Manifold - Ford 351-W (2500-6500 RPM) 5081 at low everyday prices. Be sure to check out all of our products from Edelbrock including Edelbrock Intake Manifolds - Small Block Ford.