Yes, this is a function of the Cam and intake manifold I believe. Neither is optimal if I wanted Max HP numbers, but the intake allows me to run the stock hood and the Cam is making great power and torque for a street engine. Also, with the HP falling off at 5,500 I won't have to rev the engine very high so I don't need to be concerned about the hydraulic roller instability in the upper RPM range that has been mentioned a few times in this thread.