Running 7’s on a STOCK Bottom End?! Drag & Track by turboandstance - July 8, 2017 We’ve seen a LOT of 5.3L powered Fox Body’s in years past..many of them with a stock bottom-end. But THIS one is special. Why? You may be wondering..because THIS one is the FASTEST of them all! In fact, it’s the fastest stock bottom-end 5.3L in ANY car! This self-tuning gearhead