Steel vacuum tube pushed in to main body on many early Quadrajets. This tube is 1/4" on large size to press in to the larger vacuum ports of main body, and transitions to 5/32".
This slanted vent tube is located in air horn toward the front of the quadrajet.
Brass bleed restrictions to press in main body or air horn for main air bleed adjustments..125"
Brass tube pushed in to main body on many Quadrajets from 1975 to 1985.
Down Channel Restrictions are part of the idle circuit in the main body. The size of this orifice will restrict fuel flow during idle. When increasing compression and cam on an engine, these should be enlarged to allow more fuel to flow with less vacuum...
Pair of idle pickup tubes with collars.
These would replace original tubes in Quadrajet main body in the idle circuit.
Select the size of the orifice you would like, or we will send as produced, which is about .033"
Idle tube sizes are not one size...
Pair (2) of Brass secondary tubes. On air hornOD .276" x 1.000" length
Steel "T" tube pushed in to main body on many early Quadrajets. This split the vacuum line going to the vacuum Brake/pull off.
Steel vacuum tube.