It's made great power on the dyno (784 RWHP)before but for making more power I haven't been able to go any quicker than when I had my 2.3 Whipple which made quite a bit less power (720 RWHP). Well, after investigating this problem for quite some time I concluded that the belt couldn't stay "hooked" in the shorter gears because it goes through them so fast (which gets the belt hot and greasy and slips the rest of the way down the track; which still net me a single digit pass but just not what I would've expected).
I've tried every belt from Gatorbacks, Napa, Fleet Runner, Dayco Fleet with no avail, the belts would simply either not last (through the burnout box) or couldn't hold the boost. I knew I either needed more tracition (with a 10 Rib Setup) or I needed more clamping pressure (the factory spring loaded tensioner just didn't have enough...well...tension). I've heard great reviews about the Reichard Billet Manual Tensioner so I ended up biting the bullet and bought one. After I installed the tensioner and reinstalled the belt I could already notice that there was a big difference in how tight the belt is now to what it was. There simply isn't a comparison.
Gil at NRP was kind enough to let me do a quick pull on his dyno and that further backed up my feelings.
My power went up dramatically under the curve and it picked up quite a bit of peak power as well. My car ended up making 813.92RWHP. Needless to say I'm ecstatic. Hopefully I can get 'er down the 1320 a bit quicker now.
Here's the vid of the pull and the dyno sheet.

