It all depends on what you want to accomplish. You Caddy with some vintage speed parts will be ultra cool to the real gear heads and lovers of tradition like us. Same goes for Nailheads, Rockets, MELs, etc. But 90% of casual observers will have no clue what it is or what it means to have it. So you build it YOUR way for your own satisfaction. As for me, I love all the vintage mills but IMHO the best combination of power, wow factor, and cost of ownership is the 426 based Hemi. It's huge, it's different, many choices of cool intakes, and it's harder to fall out of bed than to make 700 streetable horsepower with a gen 2 Hemi.