Thanks for all of the information, everyone. I love the 180 degree headers on the LSx and now that I know engine management isn't terribly expensive, I'm much more open to some unique ideas.
VW Phaeton W16 anyone??? Haha
Oops! W16 is the Veyron. I meant the W12. Saw that the Phateon was one of the most depreciated cars of the past 10 years and now they sell for next to nothing.