have you thought of making one. from what i remember its a spacer with two large holes for the throat of the carb and 4 holes that fit over the studs. shouldnt be too hard to make with a drill bit and a hole saw.
2004 WJ I6 4.0L DD
1987 YJ I6 4.2L Weber 34 DGEC carb, 4in RC, Custom 1 inch BL,Custom Steering box skid, homemade rear bumper with tire carrier, 33x12.5x15 KM2's on
Cragar Soft 8's, and a few other things
In the process of putting in an 8.8, d30, 4.10's, SOA, and a homemade belly up skid