Good luck with the GN.You'll have a lot of fun.I had my own shop for 25 years and all we did were Turbo Buicks.Make sure who ever works on the car knows GNs.I had many GM dealers send me a GN that their class A mechanics couldn't figure out.A good source for parts is Kirban Performance.To start, get his Boost Regulator Vacuum Hose.I replaced many a head gasket because this hose got brittle and cracked or fell off.Next get their body bushing kit.You won't believe the difference in the ride.
With just a few inexpensive parts you can get the car into the low 12s and still get 25MPG.
Ken Seggie
National Performance
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