mia96gts

I have the Pi head swap on my car but I got the pi heads stock and with stock cams. Now I would like to know if I could get any improvement off 5.4l Harley Davidson supercharged truck Cams. They have the same pi heads but i am not sure about the cams. Apparently they are the same as the SVT lightning. My question is......Can I use does cams from the S/c lightning or Harley? I went to a shop for mustangs were I live and the owner told me they should improve over the stock pi cams but I don't know anything about the Harley or Svt cam specs. does anyone know anything about the cams they got? I got 2 cams but I don't know if I should put them or not.