Forgive my extreme ignorance, i know woods ported are "less hot" than race saws, but what exactly do they do to woods port them? What does a woods port job entail?
There are levels of woods porting. For example, Madsen's does no muffler opening, due to restrictions imposed the mfr's--(They're a huge company.) Woods Logging in Sedro Wooley does light porting--- I'm not sure of the details, but likely they charge less than $200.. and woould do no timing work, and only light port opening, probably no cylinder decking, which increases squish, and thus, compression. Same goes for Walker's in Nanaimo, BC.
The full meal deal, which I have had done on many saws over the years, does all of the above, but not too much compression increase, and no finger ports, which some do, I've heard... one porter who was or is a member here-- (MM??)has quite the reputation, but not among other porters, whose work is aimed toward longevity.
Many of my saws clearly have power increases in the order of 50%, based on reduction of cut times. Most impressive gains, typically are seen on Husqvarna saws.. 372, 346, 550, and 357.. personally.. plus, my 13.275910432 hp 3120 (LOLZZZZ), which was ported by Dennis Greffard way back in 2002. It's been reringed and had the cylinder honed, and still goes strong! Two reasons why it needed that... butt cuts and its less than optimum filtration design... The saw first hit the market circa 1996-8....Dolmar's typically see less gains, likely because they are so strong in stock form. I had the 2nd ever ported 5100S and still have one of the first ported 7900's...Built, the 346XP NE was faster than the 5100S, and a bit lighter. I still have a bone stock 5100S, don't use it a lot, but I doubt any other stock 3 cube saw can hang with it!
I run full syn mix, at 36 to 40-1
I'm not working all the time these days, being 5 months from the big 70.... but I still yearn for a fully ported Husky 390.