What are you putting that in? I'm going the opposite direction stroking a ej22T closed deck block with a 2.5 crank and rods. I'm going to use a set of ej22E heads with delta cams with roller rockers. I have a TD04 to put on it which should be plenty for my 82 glf. I have a ej22T harness like you but i'm going with a early jdm wrx ecu with a ESL daughter board to tune it.
What pistons are you using? I think the 22t pistons will be above the deck if you put them on the 2.5D rods. Do you know what you're compresion ratio is gonna be?
that's my reason for de-stroking......lower compression while also being better at spinning up the RPMs quickly. Also the 25d has smaller rod bearings- no bueno Might need to get some 257 pistons.
Mine will likely go into my 89 XT, as it's already got a turbo crossmember. But it might see time powering my Rat Rod FWD 80 DL wagon.