Could you post some time slips, or some dyno charts to prove your numbers?

 

I am running a little over 300 whp myself with similar mods. I bet if I cranked the boost up a little more, 320-330 wouldn't be too far off. Most people don't post claims since they are hard to fake when people come to your shop to see the dyno results. I think it's do-able. Good job!

 

www.ultimate-racing.com got some sweet times, like they got 12.56@107 with just their turboback