[bigblockv6]

Like in the previous post I mentioned the of what I could see the carb was the smaller Stromberg ww model, in the new pic definitely confirmed the smaller rectangular carburetor base rather than the larger trapezoid base. I feel the engine is most likely a 351C but at the least it could be a 305C. Yes the 351C was available in medium duty trucks up to 1972 then replaced with a stroked 379 in 1973 which lasted till 1974.