i don't know much about fuel injection so not sure if you would have slides or not.
im pretty sure you would have washers, the carbs disconnect from the intake ducts the same way as the airbox, get a long screw driver and release the clips (may need a torch to find the screws) and the washers are simply sat on teh top of the ducts, all you do it take them out
basically the washers sit right under the carbs
should have said i was down your way today could have shown you lol