Dart/Demon twin scoop locations

I agree with using a smaller hole saw when using the DMT seals. I used a 4 1/8" hole saw but could have gone smaller. I would suggest some "practice holes" on some scrap material.

Also, I created my own templates using the (aftermarket) scoops I purchased (from Mopars by Crane (now out of business)). I measured between every stud to every other stud on each scoop. I then made my templates (driver & passenger) using AutoCAD. From the underside of the hood, I "center punched" and drilled small pilot holes in the 3 (?) holes in the inner structure then placed my templates on the top side of the, masking tape covered, hood.

Hope this helps.