This is part of a previous long post so reposted this seperate. My problem is a little blowback coming out of valve cover breathers causing a little drip. The breathers are VERY SMALL not right size. When take breathers off a small amount of white smoke blows out. But no leaks no water in oil and no leaks anywhere else, doesnt appear anything coming out of tail pipe. I was wondering if normal with this type of RACE motor or maybe return holes stopped up car sat a long time I think. I just praying nothing internal. THe car has the GN1 aluminum heads and valve covers I do not think valve covers on correctly and used a cork gasket, should it be rubber? But very worried about this blowback.