I can back this up, check out the dyno plots of my car, last dyno I had a stock intake with a SVT airbox on my car, this year on the dyno I had a full SVT intake on the car, didn't gain much if any power but the A/F with the stock SE injectors was better then before, instead of going very rich at 3krpm it was fairly level out to 5k rpm before it dropped off rich
