Just bought my first GN. It’s an ‘87. Have no info about car. Trying to learn turbo Buick and identify parts on car so I can get it tuned with TT chip and not hurt anything. Have been researching. Think it may be TE44. No tag or info plate. Has Garrett M 24 L .60 A/R compressor housing. Precision turbine housing. Tried to remove down pipe to see A/R had Allen head bolt strip. Compressor wheel is 12 blade 58mm inducer 75mm exducer. Has 3705-1 engraved in bottom of outlet of compressor housing. Any help would be greatly appreciated!