why
 

ok pulled my upper intake off. When i turned it over there are round holes and square holes. The proplem is the square holes on the passenger side are full of oily crap. http://i40.photobucket.com/albums/e2...h_IMG_1310.jpg
http://i40.photobucket.com/albums/e2...IMG_1319-1.jpg
http://i40.photobucket.com/albums/e2...h_IMG_1319.jpg
http://i40.photobucket.com/albums/e2...h_IMG_1318.jpg
http://i40.photobucket.com/albums/e2...h_IMG_1316.jpg
http://i40.photobucket.com/albums/e2...h_IMG_1315.jpg
http://i40.photobucket.com/albums/e2...h_IMG_1314.jpg
http://i40.photobucket.com/albums/e2...h_IMG_1312.jpg
http://i40.photobucket.com/albums/e2...h_IMG_1311.jpg
what causes this and how do i fix it. here are some pics.

Possibly burning some oil on that side of the engine. Why did you take it apart?

i am just cleaning it up might powder coat it white

So no complaints then? It maybe burning a little oil, nothing to worry about IMO, what kind/grade of oil are you running? I would run synthetic as when I switched to synthetic I now burn no oil as opposed to the 1L between oil changes before (this was on my '88 5.0 with 230k).

i have only run synthetic sense i bought it. i have never added a drop between oil changes. but you say its not a huge issue

No, I wouldn't worry about it, it could also be a carbon build up which looks somewhat like oil, but either way, it won't hurt anything, intakes usually have some oil or carbon or both, it's perfectly normal.

cool thanks