Fast 30400-KIT-EZ-EF Instructions Manual - page 7

7 

Throttle Body Installation 

1. Start the installation of your new EZ-EFI

®

 system by installing the throttle body.  (NOTE:  If

you will be installing a new distributor, such as the FAST™ Dual Sync Distributor, you may

have more room to work if you complete the first part of that installation before bolting down

the throttle body.)

2. Begin by removing your carburetor.  As your remove the carburetor, note if each of the 1/8"

vacuum lines are run to ported or manifold vacuum. Determining if a vacuum port is “ported”

or “manifold” vacuum varies on each carburetor; refer to the manufacturer’s specs for your

particular carburetor.

NOTE:  If you will have the carburetor removed for a length of time, be sure to plug your

manifold with clean rags so that no foreign debris is allowed to enter the engine.

3. Install your new EZ-EFI

®

 throttle body using the provided gasket and fasten using the screws

or studs that were used for your carburetor.

4. If your carburetor had a Holley-style linkage you can reuse the same cable stops and return

springs.  Otherwise, you will need a cable mount and return spring kit such as FAST™ PN

304147.  Be sure to utilize a cable corrector plate (included with the 304147 kit) if running a

700R4 transmission. A common size throttle ball stud and nylock nut are included for

connecting the throttle cable to the linkage.

5. Reconnect all vacuum hoses being sure to connect any ported vacuum systems to the correct

1/8" port as shown below.  Leave any unused ports capped with the provided rubber caps.