Throttle return spring on Air Gap manifold

Go to Mancini Racing, fuel systems, carb return springs you will see a picture - Carb Adapter and Spring, Stainless bracket mounts to rear of Holley, Edelbrock, AFB, Quadrajet and inline Duel-Quad carbs. Stainless springs are used to mount MRE's throttle cable and kickdown assemblies. Design includes teardrop extender to give more clearance. $23.95 P/N MRE-LK400O (manciniracing.com) hope this helps some.