if it doesnt do anything (piston booster port) then please pray tell when the piston is put in upside down does the engine not run at all, if it did nothing then it should still run , and yes I went out and did just that, I turned my piston around to see ,and guess
what ?she no run , so it is the opinion of this court that yes the piston port not only does something it does it well , defense rests its case your Honor