Ok, Let me do a better job explaining, and THANK YOU for your response!
What happened is, after the car was put back together it WAS having the issue stated.
The Crank Position Sensor not "Cam" was the code read-out, so we replaced it. Also then reset the check engine light with a scanner.
The battery was disconnected and we let it sit overnight.
NOW- No codes present, but it feels/sounds like it's being regulated by fuel, timing, or ignition.
The sound does NOT sound repetitive, but more so like "pitch and roll," In other words, if we had a graph representing power, it would not be a steady hesitation, or kick back, but more jumpy, crackle, and pop (In the words of my mechanic)
The crazy thing is, there are 2 guys who work on 2.5 sti's all day (both own one) and know the end's and outs of there cars, tuning, etc... and both are left scratching there heads.