Ideal Shift points for 904

Hello,

I wanted to see if anyone might know what the target speed should be for 1-2 and 2-3 shifts in a 904 transmission? Im talking about a gradual up to speed transition and not WOT launches.
Mine will shift relatively close and pretty much be in 3rd gear at around 20 MPH.
Shift transition has been happening sooner since I swapped from 2.76 gears to 3.55's.
My 904 has less than 1000 miles on the rebuild and it also has a B&M shift kit installed.
Might need to adjust my kickdown.
Any help would be appreciated.