Think I have a plan...
Going to drop the jug .020
Should get my transfers down around 117.
Think they are open too long. Cant build enough pressure to force the remaining exhaust gasses out, especially with the low bd.
Then take the ex up to 99, for 18* bd widen as much as possible. Exhaust flange doesn't allow much more than 63%
Intake should end up around 77-78 probably widen the intake a bit too. Believe the small carb would benefit from the added area.
Seems this saw is running on (mass flow) not really building any "pressure".
Throttle response is good, but not near as snappy as Some, power delivery is very linear.
If I can get the transfers lower they will build more pressure. I believe I can get enough intake area to stuff the case better. With enough exhaust area to clear the chamber out. With such a narrow exhaust outlet I can see higher than normal ex numbers still making plenty of tq..
Only one way to find out

it's just a jug