A friend of mine has a 2003 Cobra that is knocking so he is going to put a aftermarket long block in it and is going to sell his old one. Would it be worth buying and fixing it if it is not too bad then add a set of heads intake and power adder. I have a 2001 gt that it would be going into. Can someone give me some input of maybe some problems I would have etc etc. All comments welcome. Thanks Jeremy