Hey,
For the past few weeks ive been tryin to crack down on a problem I had with fluxuating power. I tried AFM, BOV, vacuum leads, spark plugs, tuning, and so on, but just couldn't seem to find the problem. Then just last week I blew my standard clutch and replaced it with a nice ceramic one and the problem has gone away. So im guessing slipping was the problem. So if anyone is runnin about 260rwhp with a standard clutch and has a similar problem, chances are this is the answer.
Cheers,
Ben.