>Aren't all the ZR-1 corvettes the overhead cam jobs?. Aren't >all these the 16 injector dual runner intakes?. >Anyone got a clue about a 1227730 being used on one?. >That has to be a typo, right?. ZR1's used - 1228331 (90 - 91) 16163860 or 16163993 (92) 16163993 or 16196394 (93 - 95) Hope that clears things up. Regards Ross Myers