Guerro, seriously start calling tech lines. The Summit Racing and TFS tech lines will be a lifesaver here. Call them. Since Summit Racing owns TFS (or the other way around) you should get essentially the same advice from either, but I'd try both and compare notes. They can tell you what length pushrods you need.
Then also call Danny at Anderson Ford. If you catch Danny with a minute or two to spare, he can be quite helpful. Make sure you tell him you bought his cam. He can tell you the pushrod length too. Only problem with Danny is that he is usually busy, so try back if you catch him at a bad moment.
Oh and by the way, I did the TFS top end kit with the street heat intake. The only swap I made on that set was the b-31 cam from AFM. And the pushrods that came in the kit seem to work fine. But like a moron, I didn't even think to ask about pushrod length. Please let me know if you find that I got the wrong length.