modding

Title pretty much sums it up and I've done the research on HOW to do it. Still probably going to get stuck lol. I was wondering who out of you have handled a ported 346xp, I mean out of the box the engines rpms mac out at 14,500 which is already insane. Curious on your thoughts on the project...

Hi ya all. Been reading for quite a while, decided to join and post. I bought a MS361 kit and a couple extra cylinder kits to try my hand at porting and modding without spending Stihl dollars. All just for the fun of it! I'm on about my fourth iteration of top end builds, and I gotta say I love...

How does M-tronic's affect porting/modding, AND How does porting/modding affect M-tronic's?? #1.) If the muffler is the only thing modded? #2.) If the only thing done was removing catheters? #3.) If the carb is the only thing modded? #4.) If the whole sha-Bang is ported?