Carter Thermoquads ~ 'More General Information'

after studying the designs, a picture emerges, the real performance/racing/competition TQ's were the early 1969-72 CS carbs, and the '71 340 carb. but they would not pass 1972-up emissions standards. so they went to the solid fuel design just like a Qjet after '72, so Chrysler, Ford, IHC could use them and be Federal/California legal.