Here is the problem though. If you look on google, you see tons of 91s which used the 91 L98 engine and it was Supercharged. This is a 92 with a standard looking LT1 engine that is NA.

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow