This has been driving me NUTS

You don't have a carb, or a fuel system specified, but at this point, I am gonna call "your Buddies Audi" the winner.

I bet that his car can run a low 15 (like 15.1 @ 90) with no mods at all.

If you have anemic 2.76 gears and a peg leg open diff, its all over but the :sad5:

I will say a 318 can dominate, your setup is just a little on the low airflow side right now.