I measured twice and drilled holes in the sides to be able to get to the the carb adjustment screws. Also, came up with the biggest air cleaner that would fit inside the TP (9" with an extreme top) using a custom base plate that I fabricate. Not meant to be an advertisement here, but my base plates and the whole air cleaner setup are available from Mickmate, including the trick Quik-latch push button hold-down.
Ok, that did sound like an ad. Sorry, honestly just wanted to pass on the info.