As stated above, obd-1 vtec conversion kit will be needed, probably your most cost effictive solution. After this, you will just need re-tuned / different map.

OBD1 ECU VTEC Conversion Kit ($19.00 + ship)
http://xenocron.com/products.php?page=chippingkits


* I, in no way recieve any benifits from this location for posting this link to the store.