You need your map sensor,but other than that you can plug the others,it isn't good for emmissions and will smell like gas,you can go to a automotive store and see if they sell vacuum plugs or get really ghetto and use pencil erasers.leave the blowby (runs from your valve cover to intake tube,unless you have a filter for it.I'd just find the leak and fix it,mine's all fuked because I had some issues with them.When I get back home they are getting fixed.