Within the last 1-2 weeks Ted and someone mentioned the Holley line of carbs which were similar to 4100s. It was news to me.
Today this showed up in my mailbox. Holley model 4010, list 84012, 600 cfm, mech. secondaries, annular discharge, manual choke. Apparently it has the same throttle plates as a 750 cfm (4010?). The top cover is one piece split horizontally from the body like the 4100s. It looks rugged, and an obvious take-off from the Autolites. The ebay picture and description were both poor, so it was a surprise package.
Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.