Originally Posted by Hiboost

At 22 psi the setup is definitely conservative, as long as you have the fuel system capacity to get 11.5 AFR to redline it's really no big deal to run 26 psi to redline on that turbo. My 20g compressor upgrade holds 26 until 6k and then drops to 25 psi @ 6.5k and 24 psi @ 7k which means I'm running it a bit hard. The MHI in general tends to have lower torque in comparison which is good for the MR and stock blocks, but holds boost efficiently to redline so you get less torque drop off and higher horsepower numbers as a result. E85 is also a very nice way to further improve top end power with low risk if dialed in correctly. You can keep torque in check in the low RPM range and then only ramp up timing as rpm's rise.