Yep, here it is, another personal how-to documentary. This is how to put a spoiler on your plain jane camaro. First, I happen to have had a perfect parts car to cut the quarter ends off for measurements, so this should be real accurate for where the holes should be. OK here it goes. FIRST HOLE: Side of quarter panel, Passenger side Measure up from body line 3 7/16 make a line Measure up from edge of quarter 2 1/4 make a line Measure in straight from edge 1 1/2 make a line (this is a double check) It should look like this after you make the marks SECOND HOLE: Top of quarter panel, Passenger side Measure in from edge of trunk 3 3/8 make a line Measure up from edge of quarter 2 5/8 make a line Those are the measurements for where the holes should be drilled. It should minimize the need for ovalized any mistake holes. Here is the car I practiced on. It is the one I am building for my daughter and it was CRYING for a spoiler. More pictures will be below.