I have a 362 ported by Kevin and it is a monster. I can vouch for his skills.Hit up red97 (joe) or huskil (Kevin) over on Ope forum. Joe did my 2511 and got great gains! He has a dyno to verify results. I have other saws ported by Kevin with verified gains as well. Both solid, reliable, and honest porters.
Edit: I looked it up. He got 1.6 hp out of my ported 2511 vs. roughly 1.15 hp out of the stock saw. Completely different saw now!