The Walbro fuel pump IS NOT a direct fit for the Z32 fuel tank. They do not make a fuel pump for our cars. What you need to do is buy a TwinTurbo fuel pump. The stock TwinTurbo fuel pump is more than adequate for cars. In fact many other cars use our fuel pump as an upgrade to their stock fuel pump. If you need even more fuel flow then I suggest you look into getting an Aeromotive fuel pump, pressure regulator, fuel filter and replacing all the fuel lines in the car with larger diameter lines. In addition, you'll need to fabricate a tank sump or use a TT pump to feed a swirlpot for the aermotive fuel pump.