I have a '93 Cobra lower and I'm gonna be pairing it with an Explorer upper. My question is about the lower and the egr passages. On top of the lower, where the runners from the upper and lower meet, in the middle is a hole (I'm assuming it's for EGR). But on the Explorer, there aren't previsions for this hole. So I'm thinking I have to block it off. Does anyone know what/how I should go about blocking it off? And is it an important part of the EGR whereas if I didn't have it, the EGR would function for crap?
Any input would be great. Thanks
CJ
Any input would be great. Thanks
CJ