I have a 318 motor that i want to put a 360 intake on. The 360 intake seems to be missing some vacuum ports and an EGR connector and one sensor (compared to the 318 intake). They are both MPFI Magnum Intakes. Can I use the 360 manifold at all with some creative modding? Would it even be worth it? Would not having an EGR valve make it fail emissions or sap power from the engine?