I'm trying to tap my auto y8 manifold for the idle air control. The motor is a z6 block, y8 head and its going to be obd1. The problem is that the iacv from obd1 is 2 pin and the obd2 is 3 pin. The problem with using the obd1 iacv is that its longer than the obd2 and the obd1 iacv hits this casting thing that sticks out of the manifold. What should I do?