Interesting NOS 2bbl Carburetor
I thought I was all out, but I have one of these carbs left, brand new (not "remanufactured" junk, not a "100% NewNewNewNew!" Chinese trinket). $198 plus the postal ride from Seattle.
In 1971, Chrysler bought DualJet 2bbl carburetors from Rochester Products and installed them as original equipment on 318s in A- and B-body cars. I'm not sure why they did this—might've been the labor turbulence at that time made them nervous about having too much reliance on just two carburetor suppliers, but that's just a guess. It was not the first time; they did something similar in '63 (Stromberg WA3s from Bendix on 225s in B- and C-bodies).
The Rochester DualJet is a good, reputable carburetor that's designed thoughtfully (easily-rebushable cast iron throttle body, compound venturis, dual bowl vents, no bowl gaskets below fuel level), runs well, and doesn't tend to make problems. Although it was a one-year-only item on Mopars, it was very widely used on other applications; kits and floats and parts are easy and inexpensive to buy. The Mopar-configured carb is a drop-on/hook-up replacement for a Carter BBD, Stromburg WW3, or Holley 2280, so it bolts onto a 273, 318, or Slant-6 2bbl intake and the throttle linkage, air cleaner, etc hook up easily. The '71 318 calibration works nicely on a stock or near-stock 225, 273, 313, or (obvs) 318. Yearwise, it will happily work on any '60-up car, though it won't accept the pre-'66 air cleaner base with its clamp-band type attachment (you'll need to use a '66-up air cleaner). It does not have a venturi vacuum tap for EGR, so if you want to keep that working on your '73-up car this is not your carb.
Here are pics and the relevant page from the factory parts catalogue:
I thought I was all out, but I have one of these carbs left, brand new (not "remanufactured" junk, not a "100% NewNewNewNew!" Chinese trinket). $198 plus the postal ride from Seattle.
In 1971, Chrysler bought DualJet 2bbl carburetors from Rochester Products and installed them as original equipment on 318s in A- and B-body cars. I'm not sure why they did this—might've been the labor turbulence at that time made them nervous about having too much reliance on just two carburetor suppliers, but that's just a guess. It was not the first time; they did something similar in '63 (Stromberg WA3s from Bendix on 225s in B- and C-bodies).
The Rochester DualJet is a good, reputable carburetor that's designed thoughtfully (easily-rebushable cast iron throttle body, compound venturis, dual bowl vents, no bowl gaskets below fuel level), runs well, and doesn't tend to make problems. Although it was a one-year-only item on Mopars, it was very widely used on other applications; kits and floats and parts are easy and inexpensive to buy. The Mopar-configured carb is a drop-on/hook-up replacement for a Carter BBD, Stromburg WW3, or Holley 2280, so it bolts onto a 273, 318, or Slant-6 2bbl intake and the throttle linkage, air cleaner, etc hook up easily. The '71 318 calibration works nicely on a stock or near-stock 225, 273, 313, or (obvs) 318. Yearwise, it will happily work on any '60-up car, though it won't accept the pre-'66 air cleaner base with its clamp-band type attachment (you'll need to use a '66-up air cleaner). It does not have a venturi vacuum tap for EGR, so if you want to keep that working on your '73-up car this is not your carb.
Here are pics and the relevant page from the factory parts catalogue: