turboex

Ok have a 99 civic ex and putting in a b20 (97) with gsr head(98). Ok I am told that the civic ex harness with work with the swap of some sensors to make it all match up. But what about the distributor. We purcahsed a 99 gsr one and its plug does not make the harness of the ex. The ex has 8 wires in 2 roles of 4 and the gsr dis has a square plug not the the rectangle one the ex has. its wires are like 3 rows. 4then 3(there are 4 holes but one is pluged) and the 2 wires that are biger than the rest. Any ideas guys? Im guessing we were send an obd1 dis and not an obd2