I am all on board with the cool factor, and with EFI conversion the fuel curve tuneability gets much easier. And when tuning don't forget the length of the stacks control where the rpm range that the torque is made, you can't tune intake length with a tunnel ram. Not saying that there is enough science on the books to build tunnel rams the right length runner, but you are kind of stuck with what you have. I remember the early prostock days when covers on the manifolds helped hide the length and shape of the runners as a team's speed secret.