Hey guys, i'm looking to rebuild my Husqvarna 365 special. I was thinking of doing port polishing and matching the intake and exhaust also a muffler mod, more than a full on widening and changing the timing, which is way over my head and should be left to the pros. I've never done a chainsaw but have done a lot of motorcycles and snowmobiles, same principal just make it flow better I think. My question, by not removing much metal and just cleaning and polishing the ports, is this worth the effort and will I sacrifice the low end torque?