Installation Instructions for 15127, 15128, 15227 & 15228 Carburetor Return Spring Brackets for Linkage 

Installation: 

1. Mount bracket on the left (driver) side of the carburetor to the front and rear studs. For the newer style Holley Dominator HP install the two spacers, one on each stud prior to installing the throttle bracket onto the studs. 

2. The return spring should be installed now with the supplied attaching screw. Do not tighten at this time to allow for adjustment in step (5). 

3. Method A: Holley 4150/4160 & Edelbrock. Install the carburetor linkage return spring bracket to the carburetor linkage by placing it between the linkage and the carburetor main body. Use a drop of Red Loctite on the threads and tighten only enough to allow the arm to pivot freely. Caution - Allow the Loctite to dry thoroughly prior to use. Method B: Holley 4150/4160 & Edelbrock. Utilize the same procedure as outlined above, use Holley # 510-20-37 or Edelbrock # 350-8009. This will double as the mounting screw and cable attachment. 

4. For the Holley Dominator install the carburetor linkage return spring bracket to the carburetor linkage upper hole by placing it between the linkage and the carburetor main body. Use a drop of Red Loctite on the threads and tighten only enough to allow the arm to pivot freely. Caution - Allow the Loctite to dry thoroughly prior to use. 

5. Adjust to the required tension and secure the fastener.

WARNING! 

Inspect for smooth, trouble-free cable operation and be 100% sure that there is no binding before starting or driving your vehicle.