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    pressure/vacuum problem

    my 88 supra seems to be having a vacuum problem. no matter what the pressure remains close to zero. i have a factory gauge and a greddy gauge and they are both reading the same but get signals from different spots. ive checked all the vacuum lines. you can hear the turbo spool up and blow off...
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    Upgrade questions

    I am currently runnin a 88 turbo with a rebuilt 7mgte. When the engine was out I upgraded a few things:Installed AMS I.C., LMS Downpipe, Random Tech Hiflow cat, Greddy catback, HKS FCON, Greddy boost controller and turbo timer, Greddy EGT and boost gauges, and Turbo XS RFL B.V. Now i want to...