@Brooks James , In general, there are 2 different size TQ’s used on production vehicles. Commonly known as the 800 & 850 cfm carbs. These flow ratings are not exact. More general.
There are 2 model race units under 4 different part numbers that were available. Commonly regarded as 850 & 1,000 cfm.
There was a time you could get an over the counter replacement TQ in 1 cfm rating of 800 cfm with a Chevy arm or Chrysler throttle arm. These are the electric choke carbs.
The 1-3/8 primary is considered the small TQ, the 1-1/2 the large TQ, all secondary sides are the same. All primary boosters are the same double ring except the in the racing TQ.
In the above posts where the links are to the TQ, is where you can check some general information on the carbs. You’ll find that it is mostly year dependent on how many vacuum hook ups are on the carb. Trucks were exempt from some, certain or all testing of emission levels since moving heavy loads would require better power than a passenger vehicle would move. This is on the Federal and/or state levels as well as laws at the time. For the most part IIRC, trucks were not monitored.