In my opinion, the EZ30R won't be happy at 2500rpms with a tall 5th gear. 2800 - 3000 is more like it. I'd guess that the EG33 has a little more torque down that low and could pull 2500 - 2800 rpms pretty easily.
For reference, I believe the correct transmission for my EZ30R is a STi RA close ratio gearset with a 3.90 final drive. This will net about 3200rpms at 70 miles per hour and let me carry 2nd gear to close to 70 miles per hour (my goal for autocross!). I'm currently running the close ratio gearset with the original 4.44 final drive and its just too short.