I think I found it. The car is listed on the GTS registry.
LS23H9B378***: GTS#389: This 1969 383 GTS with a 4 speed/3.23 gear is owned by Tony N. from CT. Tony's GTS is a number matching B7 Dark Blue with stripe delete. Black interior with buckets and with the N85 tach bolted to the console. The GTS has a white vinyl top.
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