Just for the record.... Ford injectors are interchangable with Chevy injectors on a tpi system. I'm wondering this because Ford injectors are less expensive and if they don't require additional modifications to them, why not go with the Ford? I believe #30 injectors should work for a 400 sbc.

(first post!)

Your lookin at ford injectors here (Unviresal)

Im using ford injectors too, they work fine.

Ditto here!