EFI throttle body with side fuel injectors

A bolt-on electronic fuel injection throttle body unit designed to fit single and dual carburetor manifolds, the throttle body unit comprising:

• a core body, the core body comprising a left side and a right side, the core body comprising a plurality of air intake passages, each of the plurality of air intake passages comprising:
• a valve rotating about an axis defined by a shaft,
• a sleeve comprising an inner surface that defines at least a portion of the air intake passage,
• a plurality of orifices extending through a wall of the sleeve, wherein each of the plurality of orifices is acutely angled at a with respect to a radial direction of the sleeve, and
• a passage defined at least in part by the sleeve, wherein the plurality of orifices are connected to the passage,
• a left fuel delivery component being connected to the left side of the core body and a right fuel delivery component being connected to the right side of the core body, a left integrated fuel passage formed in the left fuel delivery component,
• a right integrated fuel passage formed in the right fuel delivery component, at least one axial end of the left integrated fuel passage receiving a plug or a port, at least one axial end of the right integrated fuel passage receiving a plug or a port,
• at least one left fuel injector in fluid communication with the left integrated fuel passage, the at least one left fuel injector being positioned at least partially vertically lower than the left integrated fuel passage, the at least one left fuel injector positioned to inject fuel into the passage of at least one of the plurality of air intake passages on the left side of the core body,
• at least one right fuel injector in fluid communication with the right integrated fuel passage, the at least one right fuel injector being positioned at least partially vertically lower than the right integrated fuel passage, the at least one right fuel injector positioned to inject fuel into the passage of at least one of the plurality of air intake passages on the right side of the core body, and
• a throttle linkage connected to the core body, the throttle linkage comprising a primary linkage crank, the primary linkage crank being coupled for rotation with a primary shaft, the primary shaft being supported for rotation relative to a passage in the core body, at least one valve being secured to the primary shaft such that the at least one valve rotates with the primary shaft.