Hi just bought a VDO boost gauge from kirban, was installing it and every thing fit snug even thoe I had to go get a new tee piece, but installed it used the original boost gauge line like the instructions said everything went smoothly tested it out and the gauge only hits 10psi, my car is an 87 gn in excellent condition runs very well only got 46k miles an no other mods at all, so I thought I might have did it wrong checked over everything even went as far as superglue around all areas wher I think there will be air leaks, checked all intake to turbo downpipe, no cracked headers, still says 10psi? The car feels very strong I can beet supercharged lightnings, mustang v8s , turbo volvos, the hole tuner community, any thoughts at why this is?