MOPED ARMY

i saw that so it looks like you just go a little ways inbasically to the first groove if you know what im referring to

it depends. the deeper you go the more you will decrease the case compression. if you are building a top speed race bike go deep, this will give you the best flow possible but will take away from your low end. if you want torque only go as far as you have to go. some people only go about half an inch in and just widen and smooth the ports to match the kit.

i have done both, very minimal difference but there is a difference.

well here is the finished product, did i go to far on the right hand side

not bad dude, however on the right side (in the pic). left side if the picture wasnt upside down needs to be a little smoother. the whole point of a case match is to make the gas/air mixture flow as smoothly as possible into the cylinder ports. so think aerodynamic when you are doing that.

there is a lump that needs to get taken down and overall its not a bad idea to make everything smooth as possible with sandpaper. but these are all super minimal improvements im talking about. just getting as close to perfection as you can.

also i used a dremel on the right side, and a hand file on the left. The hand file takes a bit longer but i think the results are cleaner and more precise