I'm rebuilding my 74 302 motocraft 2100 carb.id like to eliminate the egr valve back section that bolts on the spacer plate.id like to just close this off with something as I have no other egr components on and don't need it.but from what ive read its more involved then that.can I get a new spacer plate and gaskets upper and bottom for a 74 with the egr intake for a 2100.