Okay, time for Dad to speak up. My sons horse power wishes are a little zealous. If he could make 500 rwh i'd help dasfinc eat his shoe. He might and i mean might reach 450 at the flywheel, but thats pushing it. As far as the blower goes it was sent to embre Machine an ported and polished before we aquired it.
It was set up to put out around 16-19 lbs boost. The bearings have been upgraded to handle 19,000 rpm, which i would never attemp. i've set it up so it will spin max 14,000 at 6500 rpm max The company in forest grove Oregon that specializes in eaton blowers is Magnum Powers, they make some realy nice stuff. I've spoke to the owner a couple of times about setting this up. I recomend anyone with a eaton check out his site
http://www.magnumpowers.com/. The tuner is going to be Adam Marrer of Pops racing via remote desktop. if i can figure out this picture posting thing i'll put some pics on. And i am old.