The Quick Fuel Slayer SL-450-VS is a 450 CFM Slayer Series street carburetor on the 4160 platform. It uses a vacuum secondary with an electric choke for smooth street manners, and it carries many of the same features found in QFT race carburetors, including changeable air bleeds and power valve channel restrictions and a secondary metering plate with changeable jets. All-aluminum construction keeps it light, and the universal throttle lever accommodates Ford automatic-transmission kickdown, GM 700R4 mounting holes, and Chrysler bracket mounting.
- Type: 4-barrel carburetor
- Series: Slayer (street)
- Model: 4160
- CFM: 450
- Secondary: vacuum
- Choke: electric
- Fuel type: gasoline
- Material: aluminum, polished
- Throttle lever: universal (Ford AT kickdown, GM 700R4, Chrysler brackets)
- Sold as: Each
- Part number: SL-450-VS
Emissions
This carburetor is legal for sale and use on non-emissions-controlled (pre-emissions) vehicles and racing-use-only vehicles. It is not legal for sale or use on pollution-controlled motor vehicles. Verify your local requirements before purchase.
FAQ
What CFM is the SL-450-VS?
450 CFM, on the 4160 carburetor platform.
Is it vacuum or mechanical secondary?
Vacuum secondary, with an electric choke, for street driveability.
Does it work with automatic transmission kickdown?
Yes. The universal throttle lever fits Ford AT kickdown and GM 700R4, and accepts Chrysler mounting brackets.
Can I tune it?
Yes. It has changeable air bleeds, power valve channel restrictions, and a secondary metering plate with changeable jets.
Is it street or emissions legal?
It is a performance carburetor for non-emissions-controlled and racing-use vehicles; it is not legal for use on pollution-controlled motor vehicles.

