Jr. stock recordings.
 

The news said today that Ford is adding a manufactured or recorded sound to its new F150s. They say that these owners want the throaty powerful sound that denotes performance. Well I personally believe that. I plan on getting some recordings of a Jr Stock 57 fuelie and use it in my 57. It should save me thousands of dollars research and tuning and may actually make it faster.
If it works I may move up to Hemi sounds next year, if my chassis will hold it.