There was no VTEC model available in the USDM in 1992. Other markets had them though, JDM for sure, maybe Canada? Where are you located?
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1999 Prelude SH
http://www.hondaprelude.com/setups/setupsdsply.asp?id=3136
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1999 Prelude SH
http://www.hondaprelude.com/setups/setupsdsply.asp?id=3136