ATM’s Gas XRB Series are our most versatile "race" carburetors with a 4150-style flange and "no vacuum ports". They are the perfect blend of a precision die cast aluminum ATM™ carb body with ATM 2-circuit, 4-emulsion billet metering blocks. Fuel is managed by ATM™ all aluminum dual inlet, dual sight-window fuel bowls. They are available in 5 sizes from 650cfm to 1050cfm (4150 flange) applications.
- ATM™ die cast aluminum main body w/changeable idle and high-speed air bleeds
- Billet 2-circuit, 4-emulsion metering blocks add durability for frequent calibration changes
- 4-corner idle adjustment
- ATM™ all aluminum dual inlet/dual sight-window fuel bowls
- Billet throttle body with slabbed throttle shafts
- Dual bolt pattern throttle-body (4150/4500)
- Assembled in the USA
Gas XRBs standard finish is silver polished with black anodized billet metering blocks and throttle bodies.
ATM’s Gas XRB Series are our most versatile "race" carburetors with a 4150-style flange and "no vacuum ports". They are the perfect blend of a precision die cast aluminum ATM™ carb body with ATM 2-circuit, 4-emulsion billet metering blocks. Fuel is managed by ATM™ all aluminum dual inlet, dual sight-window fuel bowls. They are available in 5 sizes from 650cfm to 1050cfm (4150 flange) applications.
- ATM™ die cast aluminum main body w/changeable idle and high-speed air bleeds
- Billet 2-circuit, 4-emulsion metering blocks add durability for frequent calibration changes
- 4-corner idle adjustment
- ATM™ all aluminum dual inlet/dual sight-window fuel bowls
- Billet throttle body with slabbed throttle shafts
- Dual bolt pattern throttle-body (4150/4500)
- Assembled in the USA
Gas XRBs standard finish is silver polished with black anodized billet metering blocks and throttle bodies.
- Regular price
- $816.10


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