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  7. Holley 4150 Secondary Throttle Return Spring 66-402
Holley 4150 Secondary Throttle Return Spring 66-402
Holley 4150 Secondary Throttle Return Spring 66-402

Holley 4150 Secondary Throttle Return Spring 66-402

Your Price: $6.95
Part Number: 66-402
Availability: In Stock
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Secondary throttle return spring for Holley 4150 double pumper carbs.
Goes on the secondary throttle shaft and returns the secondary to idle position. 


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