OK I noticed something else. At idle with vacuum on, my fuel pressure sits at 45psi. When I start off the line, the fuel pressure dips down a few psi. Under decent acceleration, the pressure drops to 30psi! But when I apply boost from the blower, the fuel pressure skyrockets as normal, thanks to my FMU.
I talked to Kirban, they don't think its a bad regulator, but won't ship me out a new one to be sure. Is this typical of a broken regulator? I don't want to buy a new one for $130 and have it not be the problem.
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1994 Mustang Cobra
308ci, Vortech S-trim 11#, ported GT-40 heads, E-303 cam, FMS 1 5/8 headers, BBK Offroad H-pipe, 2-chamber flows, and several other goodies.
Rebel Racing. Home of Bay Area Mustangs