Single Status Update
I tried to put a Z24 carburetor on an L20B intake and the two bolt holes on the left side of the Z24 carburetor were wider apart. Now maybe the Z22 are the same as the Z24 but better check this.
AS for jetting, don't know, but you have the Z24 jets you can swap in?.
I kept the intake as it was, and oval-ed the holes in the Z24 carb base and dremeled around them to get the studs through. I wanted to be able to return to an L20B carb if I wanted. I'm almost positive I checked the Z22 carb against the L20B base and it was the same.