I was unable to find a fitting to match the 11/16-18 fitting on the original pipe so I cut the fitting off and welded a piece of 3/8 fuel line tubing with the flared nut attached. The brass fittings to connect to the manifold were not hard to find. The 3/8” tubing slid nicely inside the 7/16” tubing and was an easy weld. If you look closely at the driver's side picture in the earlier post you can see the reduced tubing size and smaller fitting near the intake manifold.
