On general principle I would agree except for the fact that my pressure regulator is supposed to be factory set at 59.5psi and it idles at 72psi on the feed side. Could be its not because of the smaller return but it's been suggested that is the reason. IThe return only runs about 3-5psi back to the tank so I'm not sure why it might have that effect other than it leaves the throttle body through a 3/8" line and is necked down to 5/16" steel down at the frame. I'm no expert, I just listen to what they say.