i would slap in a alloy decomp plate from ferriday engeneering and keep it a propper st170 engine down to the fact that the head flows like a cossie head

i wouldnt think the cam profile is verry well suited to turbo dnd i would think a reprofile would do the trick

there was an article about one that was done by power engeneering that got 280 ponies without too much boost

sticking cvh head on one is going backwards tbh