The Quick Fuel 49-3QFT throttle return spring kit is made from laser-cut stainless steel to virtually eliminate flex. It positively locates itself on the throttle body of 4150-style carburetors and comes with brass bushings and stainless hardware for easy installation.
- Fits square-flange 4 BBL 4150-style carburetors
- Laser-cut stainless steel to reduce flex
- Locates on the throttle body
- Includes brass bushings and stainless hardware
FAQ
What carburetors does the 49-3QFT fit?
It fits square-flange 4 BBL 4150-style carburetors.
What is it made from?
It is laser-cut stainless steel to virtually eliminate flex.
Does it include installation hardware?
Yes. It comes with brass bushings and stainless hardware.

