It's 180 and I have never ground through the top at 176 on a Meteor or That other Chiness crap on the 372 after decking them. Obviously you grind that high too. Yet advise everyone else 160. Why? You know 180 hauls arss. Every guy I have ever spoken to in person uses 180 as a bench mark. It is easily keeping up with anything else I saw on YT. I'd never run 160 it would be a dog. My 346 XP is 184 and that did go through the top after decking. No Problem just fixed it and carried on. That saw is off the hook, an absolute weapon on 3/8 and 20" bar. I'm seriously considering going to 184 on the 372.
If you want to stuff around with stock porting you go for it. It's not my style. A stock 372 is higher than 160.
Come on huskihl you can pull the wool over a new guy but when someone has all ready run a saw with 180 and proved it woks well you are dead in the water. It pulls harder with far more torque at 180 than it did with stock porting by a long way. Not a little bit, miles! I knew strait away what you were up to with your 20 degrees blow down an all. Just be honest and tell it like it is. Further to that a saw at 180 has a pretty distinct sound. When you watch YT vids and listen you can hear clear as day who is running about those numbers and it seems about 50/50. I've got the screaming saw I wanted now I want the SAME saw to generate torque. Maybe you guys don't know how to do that, fine I'll work on that myself. From what I can see Hotsaws 101 has sorted it out so I believe it can be done. My 346xp would level peg his I'm sure of it. Maybe that's my answer right there.
I realized several days ago I was not going to find my answers here so this is no loss to me I could careless.