I have the following TQ's avaialble. Let me know of any interest and I will answer your questions.
1972 340 #6139s rebuilt/unused - professional rebuild by David Cheves - Demonsizzler
1972 400 #6090s good core
1972 400 #6090s Holley Corp. used test carb to Dyno other TQ's
1973 440 #6322sa NOS Thermoquad - amazingly hard to find a NOS TQ
1974 400 #9103s Remanufactured/unused
1974 460 #6585s good core
1979 360 #9207s Rebuilt/run tested & shelved
Please contact me or private message me (preferred) and I will give you my email address & phone number and will answer your questions.
Thank you,
Gary