Go to hondatuningmagazine.com and check out the built Delsol in the new article. If you do a B20 swap the best head to get would be a B18C i-vtec, if you do that setup you will need a P72 OBD-1 ECU and OBD-1 wiring harness. The LS1 transmission would be the best to get, its eitheg a 4A or 5M...