Quote:

I think what your calling an electric vent MIGHT be a mixture control solenoid which would be an electronic feedback carb. that needs a computer and associated sensors etc. to run correctly.


with this and Scratchin'.
If that truly came off a 5th it wasn't the original carb, OEM was T-quad until '87 I think, then was feedback Qjet with spark and fueling computer (often mis-named as Leanburn).

Either way, I don't think 5ths ever got a 4-v, I think later ones of the feedback era got electronic Holley 2-barrels.

So, figure out for sure what you have and what that solenoid is. If it's a GM carb it could be from teh early 80s and with a solenoid bowl vent or something.