You can throw a very MILD one in a SD car. And when I say Mild I mean Mild. But it is a bit better than stock. I believe Comp makes one or two but the mild lift increase really wouldn't make it worth it. Throwing a cam with some decent lift and duration in a SD car is asking for problems. Spend some cash and throw a Mass Air Meter Conversion Kit on her. Ford Racing or Interactive System's & Technologies makes decent conversion kits for Speed Density Cars. Then you can throw a nice cam in her, and even some nice heads, Compression etc. Do it right the first time man.