135 to 160 is actually a pretty big difference!Speed limit apparently won't be raised for Acelas. They will go into effect with the Avelias. The necessary work to make that possible is done. The higher speed limits are only on tracks 2 and 3. Speed limit on tracks 1 and 4 will be raised from 110mph to 125mph too.
One thing I recently noticed is that scheduled trip times on BOS-NYP have changed back to 3:32 from 3:46 last year. Any particular reason for this?