General Category > Quadrajet Carb Talk and Tips

Lower idle air bleed/feed?

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ejowrench:
Just read about the lower idle air bleed hole [in the main body]  on some Rochester carbs also work as a 'feed' during off idle. As the throttle blade starts to go pass this hole it is subject to manifold vacuum, thus pulling a little fuel out of the idle tube for a smoother transition.

My question is, does the Q-jet use this feature and how will modifying this hole affect the tuning?

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