1973 340 Thermoquad - Rebuild service or need parts
There used to be a TQ Guide floating around on the net written by Gary Lewallen (aka. Vaanth).
That guide lists the rods for a 6319 carb as 1966, further supporting the earlier post.
The primary jet should be a 4098 and the secondary a 5137, FWIW.
I used to collect TQ's and have several in boxes. Only one of interest is the 6452 that came off my car, the rest are more just parts carbs. I really need to dig them out and put them up for sale and get them out of my way.