What Fuel system mods do I need to get more power out of a 9psi Drag 3 Turbo Kit on an LS motor?

Also, I heard of people running DSM injectors... are they better than aftermarket injectors? and if so, how do you get them to fit in a Honda Fuel Rail, and to the Injector Plugs?

 

Yes bigger injectors and fuel pump will allow you raise the boost up on your car. Do a search on DSM injectors, it's been covered so many times. People use DSM injectors because it's a cheaper alternative to buying RC or Venom, etc. There is a complete post on how to use DSM injectors, do a search.

HTH