I have a 84 t-type that i just got done building a motor for. Just got it fired up, and concerned about the tach. As soon as the key is turned forward to run, without engine running, the tach reads 1000 rpm, and the boost gauge is up a bit,(how can it read boost if the motor isn't running?) I have the anolog 0-85mph speedo with the little digital tach and boost gauge down in the lower corner. Any answers?