Edelbrock 7521 Ford RPM Air-Gap Manifold 289-302
Edelbrock 7521 289-302 Ford RPM Air-Gap Manifold Designed for Ford 289-302 street applications. Includes nitrous bosses. No provision for exhaust-heated choke and no exhaust crossover. Aftermarket 4-bbl carbs are not compatible with Ford Auto Overdrive Transmission (AOD) unless used with Lokar bracket SRK-4000.