How to install the "Angel Vent" hood scoops - part #s AV1001 & AV2001, & STM14001. 

1) Make a template of the outer dimensions. Poster paper works best but cardboard or paper will work too. Just place the scoop upside down on the paper & trace around it.
2) Place the template on the hood carefully centering & squaring it & with the front edge 8 3/4" back from the front of the hood for part #AV1001; 7 1/2" back for part #AV2001; & 7 1/8" back for #STM14001. Trace around it with a pencil.
3) Cut out the opening being careful to ONLY cut through the skin of the hood (about 1/8").
4) Turn the hood over & take a gasket scraper type chisel & separate the skin from the inner structure so that you can remove the cut-out piece.
5) Cut the inner structure by lowering the scoop into the hole & cutting to fit tightly against the sides of the scoop.
6) Using the cut-out piece, make bonding strips at least 2" wide to go around the circumference of the hole. They have to overlap both the opening & the scoop at least 1" all the way around.
7) Drill small holes every 3" or so around the opening in the hood & the scoop 1/2" from the edges.
8) Place the bonding strips under the opening & screw through the holes pulling the bonding strips up tight. Place the scoop in the hole & do the same with it.
9) Remove the scoop & bonding strips & grind all contact surfaces (bottom of hood & scoop & top of bonding strips - & don't forget to do the bottom where you'll be molding in the inner structure to the scoop) with a 24 grit disc.
10) After blowing off all the dust ;-) mix up your 'Vette panel adhesive/filler & spread it on the bonding strips & screw them in place, then screw the scoop in place. Work fast so that the adhesive doesn't set up before you get the strips & scoop pulled down tight. The adhesive should squeeze out all around the edges.
11) Go back under the hood & add the adhesive/filler all around the edges of the inner structure where it meets the scoop. If you want a little more reinforcement, chop up a little fiberglass mat with some scissors & mix it in with the adhesive before you mix in the hardener.
12) After that dries completely, grind out a "V" all around the seam & the screw holes using the same 24 grit. Fill with the 'Vette shtuff.
13) Sand smooth with blocks &/or paint paddles. Usually you start with 40 grit, go to 80 grit, & do a little final smoothing with 180.
14) Prime & block as you would any bodywork. Re-prime & you're ready to sand & shoot the paint.
15) For Part #AV1001, before bolting the hood back on, cut the sheetmetal in front of spare 2" x 20" & relocate the overflow tank.
16) Drive & enjoy your new cool looking hood vent knowing the front end won't float & headlight doors won't pop up when you meet a huge truck on a two-lane. ;-)