I figured when I am ready to test the addition of a boost port, I'd fit a piston and liner from a .25 FSR since I have a spare set - I put a new piston and liner set into my 25 FSR. The port size/shape and timing is virtually the same and the FSR set fits the LA perfectly. The larger carb from the FSR fits the LA as well. So with improved breathing and (later on) timing profile, it should run a fair bit stronger.