Originally Posted by tonyHTX

Also I would add the fuel system (injectors, fuel pump, rails, return lines, etc) and type of fuel used (91, 93, E85, etc) have a great impact on HP numbers - and in my case, the compression ratio of the motor.

There are so many variables that change the final outcome, I'm still learning new things everyday!

Originally Posted by theDreamer

The fuel is a big one, one reason I started adding it to the finished builds thread because people with much lower boost were hitting high numbers but were on e85. Helps show a better perspective into how someone reached it.