Holley Throttle Return Spring

[gaC5]

I have a 78 with a Holley model 4150 carb. I am trying to install a throttle return spring but I don't know how it goes on. Would apreciate it if someone could send a diagram or picture of it.

 

[JohnZ]

You'll have to rig up your own, as 78's never had Holleys on them. Run the spring from the top end of the linkage arm forward to a bracket under the first or second intake bolt from the front. If you run it from the bottom end of the arm toward the rear, it'll wear out the primary throttle shaft bushings and cause a vacuum leak.

 

[gaC5]

I'll try that. thnx