Ok, if you had the perfect numbers matching K code...fastback, pony, GT, 4 speed, would you leave it as it is, or do the same upgrades Shelby did in the day? intake manifold and carb change? Is it worth the horsepower...or is it better to leave this kind of perfection stock? My intentions are to drive this car....and for the moment I drive a 67 with a 347 stroker. I don't want to feel like I'm trading down.