I am in the same boat, and am needing a 4" Cobra R hood for a 92GT. I need the cobra R version because of my procharger set up with the double cowl. I put in drop mounts but still couldn't clear my 2.5" and I don't even have the spacer on my intake yet. The only company I have found that has one for my year is liberty mustang supply but have not heard any feedback about their products.
This is the reason I need the tall cowl:
This is the reason I need the tall cowl: