Does any body know what year the Cadillac had a V6 in it ? I know it was a 4.1 Buick motor. And is it possible to convert the 4.1 V8 to carburator instead of D.F.I

you can always get rid of the dfi of tbi or pfi and throw a carb on it. you'll have to find an adapter and probably a few other things. fiero 4.9 swapper use carb pretty commonly.

why do you wanna get rid on the injection?