my 87 crx si is leaking oil it looks like it is coming out at the top of the block and the bottom of the manifold cover im not sure how to fix it exacly and i have a problum with my car idling it only does t when my car is warm and i a siting there it will go from 1000 rpms to about 2000rpms then it drop back and forth and on some occasions it will die could this be my intake?? any help would be of use thanks