Just out of curiosity I have a Navarro dual carb intake that says racing model. It is stamped 434. Anyone know if that’s just a model number or a production number. Couldn’t find much online
If it's stamped, I'd bet it's a production number; if it were cast in, it would more likely be a model number. I have a Navarro "Universal" dual that looks a lot like this one that doesn't have the stamped number. The main difference is that mine has provisions for exhaust heat and is for an 8BA, which has a provision for an offset generator mount and the 8BA crankshaft ventilation system. The carbs are still located above the intake ports, just like the "Racing" model.
production number typically found on the early ones as far as i noticed. found a comparable number in comparable location on my navarro dog bone intake which are not repopped til now afaik
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