Got a 350 CFM 2V Holley. Looks like half a 4V. Has two butterfly shafts primary and secondary, linkage is mechanical progressive. Some years ago catalog listed a vac secondary version. Threaded bosses on side of carb to use same vac pot as used on 4V vac secondaries. Mechanical choke, electric choke kit will fit.
New never ran, was going to use pair but my beloved son (sneaky) used one on his Mav when he went off to University.
Has shelf dust / surface corrosion, never even had gas in it, if interested make offer.