Primary metering jets are used in all year Rochester Quadrajet carburetors. Used to tailor primary enrichment. Number indicates jet size and dimension of jet hole. A larger diameter jet will richen the entire fuel curve, from part throttle to full throttle. Re-jetting your Q-Jet can pay big dividends at the race track and increased fuel efficiency. Jet number is stamped into each jet.
Quantity: 2 Jets
These are correctly profiled jets made specifically for the Rochester Quadrajet carburetor. Rochester products made several different styles of jets for use in Quadrajets, 1bbl and 2bbl carbs, each with there own unique leading and trailing profile on each side of the jet orifice. Be careful as all the various styles will physically interchange and for example, they could all have a .070" jet orifice but due to the leading and trailing profiles being different, each style will have different flow rates.
Make sure that you are using correct Quadrajet primary metering jets in your Q-Jet carburetor by using QuadrajetParts.com jets.
Note: This item is a non-returnable item. Carburetor jets are not returnable.