Mk3 Turbo Problems

[NicolasDwolfwood]

I just bought a '87 mk3 turbo, and the car drives great, but the issue is that the previous owner swap the mass air-flow from a ls400 in to the car, so now when i start it up it wants to cut off at idle, He claims because that engine has been rebuilt and upgraded that the timing is off on the car, I think in need a upgraded fuel system to compensate for the extra air into the engine, has anyone has this issue or any solution issue number 2 is the 1st owner of this car i guess wanted white trim gauges and got a custom 1 off another mk3 but this retarted got it of the N.A mk3 now my gauge read top speed 140mph, i wanted to know if there was a place i can get the OEM factory gauges.