Q-Jet Question?

[veinbar]

I have a '75 and up Q-Jet w/o computer controls that is calibrated for a 307ci. I need to re needle and jet it for a 350ci. I know the needle lengths change in '75 and up Q-Jets, so does that mean that all Q-Jets '75 and up have interchangable needles and jets? My carb has an electric choke, but that's the only wiring needed for it. I scowered the junk yard yesterday, and found no carbs like mine on a 350ci. I found a few on 305s, so just as useless as the one I have. However, I did find several computer controlled Q-Jets on 350s, and they looked identical to mine. I'm wondering if the needles and jets from those computer controlled carbs can be transplanted into mine?

I can't use and older style Q-Jet because my intake doesn't have the provisions for a devorced choke, no do i want to buy a new elec. choke to replace it.