Kostas,
I know it will be powerfull, since it has timing optimized for aftermarket tuned exhaust systems (FROM ENGINE MANUAL). I will not be running mine for a while. We are in the midle of a very cold winter. It is 15 * F outside currently. I would of put a you know what "TOWER .75" in it, but I am trying to keep it really light, and this is quite a bit lighter than any other .60+ other than a Jett.