Edelbrock 7111 Performer RPM Olds 350 Intake Manifold- $249.99

Oldsmobile 307-403 V8
PERFORMER RPM OLDS 350 (1500-6500 rpm)
Designed for 330-350-403 c.i.d. Oldsmobiles and 1980-1/2 to 1985 307 c.i.d. engines with 5A heads (casting #3317). The Performer RPM Olds manifold is a high-rise, dual-plane design with 180° firing order engineered for maximum top-end horsepower while maintaining throttle response. Port flange has extra material above the runner for use with cast iron 455 heads and Edelbrock Performer RPM heads #60519. Has clearance for HEI distributor. Carb pad accepts square-bore carbs without adapters.

Carburetor Recommendations: Edelbrock Thunder Series AVS or Performer Series carb, 650-800 cfm

Installation Notes: Recommended intake gasket: Fel-Pro #MS96027. No provision for OEM choke. Will not clear hood on 403 Olds, Firebird/TA. OEM carb requires conversion to electric/manual choke. Manifold Height: 2" taller than stock A-4.80", B-5.80"; Carb pad height: 5.30" see A/B Measurements. Port exit dimensions: 1.22" x 1.86".