ATM Innovation XRSB-650 Billet Race Street Series Gas Carburetor, 650 cfm
Description
ATM Innovation’s Gas XRSB "street/strip" race carburetor is a step up from its XRSC series. While it shares many of the same features with the XRSC, the XRSB is intended for racers that frequently take apart their carburetors for precise tuning changes – the billet metering blocks and billet throttle bodies add another level of durability over die cast components. They also offer more race details like “slabbed” throttle shafts that promote smoother flow and less turbulence.
ATM’s XRSB carbs use the ATM™ die cast aluminum carb body that has a fully contoured high-flow air horn and externally changeable idle- and high-speed air bleeds. When combined with ATM’s 2-circuit, 4-emulsion billet metering blocks with 4-corner idle adjustment, the XRSB becomes one of the most “tuneable” race carbs on the market. These billet metering blocks also have changeable idle fuel and power valve channel restrictions.
- 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
- Changeable idle and high-speed air bleeds along with changeable idle fuel feed and power valve channel restrictions allow a precision fuel curve for your specific application
- 4-corner idle adjustment
- ATM™ all aluminum dual inlet/dual sight-window fuel bowls
- Billet throttle body with slabbed throttle shafts
- 4 Vacuum tubes in throttle body (2 are 3/8" full vacuum, 2 are 1/4", 1 full, 1 timed)
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