i'm new with my 86 gn but the way i was told to turn up the boost was to turn the rod on the waste gate clockwise one full turn is about one pund of boost, now the gauge before read about 15psi if i was on it so i got some race fuel and wanted to bump it to 20psi, i did this by turning the rod accordingly but the gauge still reads 15psi wot, could it be the gauge or is the turbo maxed? i also didn't feel much faster. any help would be great