It's a Holley-Weber progressive two bbl. You can buy them from Langdon\'s Stovebolt . He also sells an adapter to go on a one bbl. manifold, but it's a bit on the ugly side. Progressive means that it closes off the secondary until it's needed, helping torque and mileage. Call him up and talk, he has a lot of good info on them.


Fred
52 3600
69 C-10