When you go to install the front valence, it will help tremendously if you already have the little brackets that hold the front of the fender underneath. Mine did not, but Don at OMS has them. Once I put them in place, it pulled the fenders in at the bottom and I was able to line up the front valence. I did have to oval the valence or the fender mounting holes out some to get the holes to line up properly and get the valence in the correct position. Good luck, for me, it was somewhat of a pain to install because I didn't have an assistant to help hold it in place when I was getting it lined up.
Tom