i am building a motor with a 240 kit and i also want to put a 3mm stroker in it. So i do alot of port work on gokart racing engines but they are four stroke never done a 2 stroke and have all the tools and a flowbench so i can get the max flow out of the cylinder and it is a stock cylinder with a 240 sleeve so i was wondering if anyone could give me some measurement and maybe pictures so i know how much i need to remove so i dont have to use the plate