Let me say "pristine" describes mine. But these cars require steady ongoing attention. Mine right now has issues. The cruise is temper mental and soon to need an amp. I'm on the original water pump and alternator. I don't think you will solve your fix-it fatigue with a 350. These cars are the pejorative red headed step child on this forum. The bottom end issues have been unkind to many owners. I've driven a 87 300 SDL extensively. I can say to all those that only have opinions but no driving experience with the torque and other amenities of 350, when they're right they're Magnificent

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1990 350 SDL
Currently: 180,000 miles
Factory rebuilt bottom end rods, bearings and head gasket @ 75,000 in 1997