Assertion: rear carburetor | /r/HasAspect | neither idle screws
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Source sentences:
text: As an example; consider the throttle body of the 1957 Pontiac tripower: the front carburetor has no idle screws in front, and an 1/8 inch pipe tap in the rear; the center carburetor has idle screws in front, and an 1/8 inch pipe tap in the rear; the rear carburetor has neither idle screws nor pipe tap.