Shane, gemini ron had a "even" turbo, as in front and rear were identical, and you know what that car was like. He's since had it flowed and got a new wheel etc put in it, so its effective size now is apparently a t60 or so. And it aint made anymore power from that (which it should have, more air being forced thru, and should be cooler). So Id look at having it balanced like he orginally had.