Ok I am still deciding on injectors and was talking to a friend of mine that has an automative machine shop. He can bore engines and do injectors, plane heads etc etc... Last summer he took the exaust and compression wheels out of a 12cm^2 housing, bored the housing out and installed larger wheels for more exhaust flow and for more boost. This was for a sled pullin truck and the EGT's dropped boost came up much quicker and the truck has won the last three pullin contests he has been at to watch. I thought this sounded cool and thought I would see if anyone had ever heard of it being done before, cause I sure never have. :--) Sounds pretty cool to me but it was very $$$$$$$. 
