For boost i would run a mechanical but im not sure on which one for fuel pressure. I guess either will work but mechanical is more accurate i hear. And if you dont go with Autometer gauges, id recommend these - GlowShift Performance Gauges & Pods
I know a guy that has a procharger and his set up is pretty nice! Sorry not sure about the air guage, but his fuel guage is aeromotive brand. You can't run the fuel guage thru the dash into the interior. He has the aeromotive fuel pressure regulator mounted on the fuel rail on passenger side of engine lower intake. Then about a foot or so fuel line to a fuel guage under the hood. That way he can tune the fuel pressure regulator and watch the guage at the same time. Aeromotive 13103 - Aeromotive Ford Fuel Pressure Regulators - Overview - SummitRacing.com
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