Jerry, assuming you are referring to the small footprint 4-bolt (same as a 265/283 Chevy)?
If so, a Stromberg WW is your cup of tea.
These were used on engines from 224 CID to 270 CID; so different venturii versions exist.
The WW idle jets, main jets, power valve, and power valve actuating valve are ALL removable / replaceable so tuning would not be a problem.
The only design "defect" of which I am aware is the aluminum throttle body. Virtually all Stromberg WW's require bushing the throttle body. Once bushed, issue solved.
Probably the least expensive of the WW would be the MoPar 318 carbs. Possibly a more desirable unit would be one from a GMC V-6 305 or 351, both of which have 1 3/16 inch venturii. The GMC version are manual and would have GMC linkage.
We have kits for any of them, plus a good selection of idle jets, main metering jets, and power valves; plus we make a actuator valve spring kit with various tension springs.
The GMC prefix stamped on the airhorn is 23.
I still don't understand why these are not used by more of the hot rod crowd, as they are more easily tuned than the Rochester 2G series. Probably because many of the hotrodders are familiar with the stock Rochesters, and have not looked at the Strombergs.
Jon
