i posted a thread a while ago about 93 stang and my boost gauge not reading any boost just vac (it read boost at like 90mph). i have my gauge hooked up to the tree on the firewall right above the brake cylinder. i also tried putting the hose for the gauge on the throttle body the needle only stayed at 0 but went up to 5 lbs when i was in 5 gear doing 70. i have a top mount intercooler with a bov and the hose for the bov is hooked up to the vac tree also. i have a boost controller and its hooked up to the activator for the waste gate and to a port on the low pressure side of the turbo i dont know if they could be causing this. There is definately some boost because i can here the turbo spooling up and it has more power.