Make sure the carb intake matches the carb and the case or it will be a choke point (no pun intended)
another thing to note...if you have the airsal kit with the third eye on the back of the cylinder you could carefully Dremel out the case to allow more charge into the system but that's gonna be scary if you're new to peds…
I bought the airsal 50 for my first pug and didn't see much increase in performance...went to the 70 kit and BIG difference!