I bought Grey03cobra Hellion cobra a couple months ago and just got around to having the it retuned and the seals replaced on the turbo because it was smoking. When they dynoed it the numbers were low 555 hp at 16 lbs. I had Sgs performance check the entire car out compression test, leak down, ect. and everything checked out great. The only thing we can think of is when the bottom end was built the builder did not put the cams in correctly, so if I have to have them fixed I want to put in something better than stock. I know most people stay stock but if I am going to pay to have everything pulled apart I want to make the most of it. I have done alot of searching but I have not found much on cams besides stay stock or Ford GT cams. I was thinking of going with the Leathal/Coastal ones but I can not find any info on them. Sorry for the long post but I could use a little advice. Thanks