C2 Breather tube connection

[Steve D.]

63 convertible, NOM

The carburetor (Holley 4160) has several vacuum connections of various sizes and locations, including 3 small ones in the base plate. Is it critical which connection the breather tube (from rear of block beside distributor) is connected to?

Steve

[Bob R.]

Re: C2 Breather tube connection

The 63 Corvettes all used Carter carburators. If you have the AIM you will see that there is a metal tube exiting the hole near the distributor. This tube curls around and a hose connects to it. This hose then connect to a PCV which enters the rear of the Carter carburator.

[John H.]

Re: C2 Breather tube connection

A 4160 should have a 3/8" diameter steel tube with a beaded end pressed into the baseplate just forward of the rear attaching hole on the passenger side; that's where you want to connect the line from the rear vent hole adapter - that port is designed for PCV intake.