1966 D-Dart Carburetor
Holley Model #4160,,,,,List #3778
700 CFM
Throttle body sizes;,, 1 11/16' primaries x 1 11/16" secondaries
Venturi diameter;,,,,,,1 5/16" primaries x 1 3/8" secondaries
Vacuum secondaries / Manual choke / Single-feed inlet
The Model #4160 has NO secondary metering block.
This carburetor uses a secondary metering plate.