C12 upgrades

I have 2 of those haney tuned!
if I can get a 500hp c12 I'll be happy already have the pre low nox 430file was hoping I could get some hot fuel codes
To give me another 30hp with the fuel harness I would be close

 

Way back before this thread was originally posted he flashed a C15 I had that I wish I had never gotten rid of. My avatar, it was a great truck and engine.

 

He's the man!!! But i heard diesel spec is pretty good as well

 

What are some good fuel codes for the 9ns c12??? I think we all know the big blocks hot fuel codes what are some for the c12!!!? much help would be appreciated.

Also for the small block would u rather more torque for the 1650 file or more hp with the emergency file!!!?