Description
Holley Metering Block Emulsion Tube gets pressed into the top well of many OE and lower CFM Holley carburetors. When rebuilding a carburetor, it is a must to remove this tube, as debris will often build up around it. The orifices in this tube measure .050″ at the top and then the 8 holes (2 sets of 4 that go around the tube) measure .023″. This tube is for 4160 and 4150 Holley carburetors and will NOT work on a 4500 Series carb.
