this lil bad boy doesn't have a window or any type of holes in the intake side of the piston. now my last kit( rip ), the alukit had a huge hole in the piston.. while this only has one ring ( for higher rpms ), the alukit had two ( more low end )... my question is....would it behoove me to take the alukit piston as a templet and cut a hole in the parmakit piston?? why would one reed valve kit have an open window in the piston and another deem it not necessary??? there are 768 posts for parmakit and 238 posts for piston windows that i have read in the last two days... still at a loss whether to do this....