Without vacum reference, and then with vacume reference on a 93 2.3 Im getting 10-13mph lately and I checked my fp and its runing 39psi with vac and unplugged is near 50psi. When I installed the Kirban I 'thought' i had it set at around 33psi with vac. I cant find in my books any where the stock pressure, other then the 'okay range of 30-45psi' Thank you in advance