AEM's new fuel systems include direct-fit High Volume fuel rails, High Performance fuel filters and trick adjustable fuel pressure regulators for Hondas.

To remedy the Chevelle's fuel-delivery woes, we wanted to install a new electric fuel pump along with an adjustable fuel-pressure regulator.

Noob tuners believe upping a few psi of fuel via an aftermarket adjustable fuel pressure regulator (FPR) will give you plenty of more power. Utter fail.