best way to mod a GM q-jet it to grind the end and remove the GM throttle lever and tac weld a stock mopar q-jet throttle lever on
that way it works with the correct stock mopar linkage from mid 80s trucks and 4-v cars
the ones I look for start with a 704XXXXXX carb numbers
the 1704XXXXX ones are ok too but I like the older 327 Gm carbs for a swap to a 318,just about the same i think
I got a 74 q-jet from a truck with a stock 360 intake on the shelf
I swap back and forth with the eddie LD4B/600 carb
just picked up a thermobog thats an early non emissions looking one
not many vac hook ups to it
I needs to resarch that one some
i say run what ya brung