Yes the motor has the factory cam in it. The guy that had it before me took off the FI and put this dang carb on it. When you say fresh air intake, what do you mean? It does not have headers yet. I do want to put them on it but was't sure what to start with. I am on a Honey budget. I have to say "please Honey" before I can spend any. The way the motor sits in this thing, headers are going to be a long swearing project to get to fit properly. I have a feeling I will have to go with the shoty's. The truck has the 307, and a 700r. Also has the stock rearend from the firebird. Thanks for teh help I need it. K9