Manufacturer's Part Number:
Summit Racing Part Number:
Carburetor Idle Feed Restrictor Thread Size:
Carburetor Idle Feed Restrictor Material:
Carburetor Idle Feed Restrictor Finish:
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These Summit® idle feed restriction tuning kits are designed to fix low-end drivability issues, such as black smoke, poor fuel economy, and surging at idle. They include four each of 0.043 in., 0.046 in., 0.049 in., 0.052 in., 0.055 in., and 0.059 in. idle feed restrictions. These Summit® idle feed restriction tuning kits also include two nozzle bar gaskets and a detailed instruction sheet for easy installation.