tuneportbeast

I know many of you think the airfoil is a joke, and it might be, but my car had one when I bought it. Since then, I removed it because I put the car up for sale a few years ago. I never ended up selling it so Im wanting to put the airfoil back on, whether or not it makes a difference, but I cannot find the bolt that bolts it on and I want to get the exact size so I know its bolted in there exactly how it should be. I cant find, for the life of me, anywhere online that indicates what size/length the bolt is. Can anyone help me with this so I can go buy the correct size bolt for it? I dont think it makes a difference whatsoever but my car is an 85. Thanks in advance for anyone that can help me out on this!