I have a question about the mysterious and missing fuel switch that is to be used with the 87 t-bird coupes. There is supposed to be a regular/premium switch that will only alow the turbo to make about 9 psi on regular setting. My mustang has a 87 tc engine with a t3 turbo and no switch but I will be using 93 octane and a gillis valve so I should be able to boost it up around 18-20 right? I have the overboost light but that's it. I finally have the new 87 t-bird eng, tranny and driveshaft installed. All I have left are the sensors, injectors, belt, and upper intake. I should have it running tommorrow. By the way, I have a in-line 190 LPH pump with 35# inj setup. If the switch isn't on the car, it should still be ok with the gillis right?