If the number is 93XX, it is not aftermarket.
The big 850 cfm has 1.5" pri bores; the smaller 800 cfm has 1.375"pri bores. So easy to tell which size.
There were some Ford 429/460s I believe that used the TQ; also IH used them on trucks. I had a IH carb here recently; the fuel inlet was in the centre rear of the carb. Mopar carbs have the fuel inlet, rear, pass side.
