The Edelbrock .039 metering rod is a pre-1975 style replacement rod intended for older carburetor rebuilds and tuning. Specified as .039 in size and sold in pairs, these rods match original pre-75 configurations for applications that require that diameter. They are suitable when servicing vintage carburetors where the .039 specification was originally used for fuel metering control.
Edelbrock 039 Rod (Pre-75)