Get ahold of them. I see them on eBay from time to time and was able to but complete rebuild kits. Some are over priced and some are cheap just depends on who is selling them. I'm going to run a pair on my now 175" Chevy 4 cylinder. I was told by a carb expert that they are good in a single application but hard to tune in multiple setups. I wish he'd told us that in the '60s. They would never have been our carb of choice. They were on a lot of trucks, GMC and International for sure. Lots of farm equipment. You should have no trouble turning up a few rebuildable ones in your area. Try the equipment wrecking yards. Anyone with a lathe and a hunk of aluminum could make a venturi of what ever size they want. I'll be rebuilding a pair soon.
