Welcome to the site. Very cool story. As you have now found out, there is lots of good info and great people here. This is the leading source for Turbo Buick knowledge. I wouldn't drive on those thirty year old tires. You'd be flying low and slow . Lots of good info given so far. A scanmaster is your friend. It will tell you if you are doing damage to the engine. My gut feeling is that you may be right now at WOT. Could be fuel pump, injectors, vacuum leaks or any number of things. These engines make a lot of power from a small cubic inch. Everything needs to be in order or it will knock. If it does, you will not hear it. It will just push out a head gasket and beat up your rod bearings. How close are you to Tooele? RJC (Racin Jason Cramer) is there. he is one of the nations most respected Turbo Buick gurus. If you're not too far from there, you might stop by (fly in ) and buy him lunch. By the way. What do you fly? I'm a pilot too...
Well, sort of. It has been argued with other "pilots". View attachment 313831
Cool, nice to know and thx for the advice. To date I’ve put 28 miles on the gn for a total of 138 Miles. It’s running perfectly and I have no complaints. I currently fly captain on a legacy 450, Phenom 300 single pilot, and we also have a pilatus pc-12 that I fly on short hops. Keep in touch,