Here's how I installed my old hood pins:
I took some red nail polish from my wife and painted the tops of the posts after I'd installed them in the place I wanted them. With the paint still wet, I lowered the hood so that it would touch the wet paint. When I lifted the hood back up, I could see right where I needed to drill into the hood. I recommend using a Dremel if you have access to one, and a very small drill bit.
hih