Gizmo's Racing modified Walbro WT-257 carburetor is bored and the mouth of the carb has a radius inlet to allow a smooth and even entry of air into the intake duct with the flow stream adhering to the carb walls.
The flow-contoured entry is designed to reduce boundary layer disturbance as high velocity air enters the intake path. Results include improved air stability and increased engine performance.
**The carburetor also comes with the needle clamp and stainless Button Head screws.**
NOTE: THESE ARE PORTED ON A CNC MACHINE SO WE CAN GET PRECISE BORE SIZE EVERY TIME.
Here is the video of the mod being done on the CNC machine.
All our Carburetors are Genuine Walbro and not the copies that are being sold as OEM