Q-Jet parts

[Dean Feiock]

Originally Posted by FED 387

By the way I believe it is a 7/8-20 size---Not a 1-20---Comp 387

All Edelbrock carbs and 74-89 OEM carbs use 1" X 20 thread.

A simple fix is to drill and tap your factory inlet housing to 3/8" pipe. With a good drill press and a sharp tap it won't take you more than 10 minutes. Then you can use a very common AN to pipe adapter.