ported

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?

A 288xp lite fell into my lap a few months ago. Had low compression so Im doing a cheap reconditioning.. new piston, ring, pin and bearing. I honed out the damage on the cylinder and did some modest work to the ports.. main bearings seem ok, so I'm not doing the complete teardown. I should add...