Ah ok..

Thats 390 at the flywheel from an engine dyno. NOT,.. at the wheels.
Its showing 320 trq and almost 300hp with stock heads and cams which I know they dont make to the wheels stock.

In the real world thats about 330 - 350hp to the wheels. Which is not bad at all. But for the price of TFS heads and the cames they what you to buy,.. thats a $4000 package. Stock heads and S-strim and you have 400 to the wheels for the same money.

Plus I'm a little suspicious of how linear the dyno graph is. Considering the source if from a TFS tech,.. I'm willing to bet that they are spinning that graph to make the heads look much better then they are.

Hurst