One thing I learned the hard way is that the TF heads are easy to over cam since they have really good flow at low lift. If the lobe is too fast you'll end up with reversion and the engine will not make the power you were expecting.

Dwayne has a good handle on this since he has watched my test results. Give him a call and ask about the Comp cam that you already have. It might be fine for what you're doing.