I haven't gotten any answers..... So I understand the PCV system, except I'm not sure where the lines go. I am in the process of drilling and tapping the hole for the ACT. Next is the EGR and attached sensor. I have read many different things. Ranging from just not hooking up the EGR and not connecting the sensor, to have to get a new computer. Do I have to use the EGR (even if emissions doesn't matter to me)? I'd have to drill and tap the hole for the coolant line to the lower, since my lower doesn't have the same hole as the stock H.O. I've looked at many different forums, but the one that seems the most helpful doesn't have the pictures, which makes figuring this out pretty difficult. I could really use a quality answer.