[pac_master_7]

The 6.7's are a beast of an engine and can spool what most 5.9 guys call "big" rather easily with very minor fuel upgrades. I have a SPS 66 and honestly I could go to a 472 with the fuel I have and have very little lag. There are a lot more variables to getting a turbo than just what the compressor side of the turbo is. I will say though, if you want a good, quick spooling turbo, a 366 is gonna be pretty damn close to stock spooling and will get you a whole lot more air. In the end, it really has everything to do with what you plan on doing in the long run. If you plan on going for big numbers you need to plan for the future. But regardless, you will love yourself for getting rid of the stocker. I PROMISE!!!