The Beer Money 1986 Mustang has been famous ever since it won the the first Horsepower Wars show. Since then it's been winning races on the no-prep circuit. But a blown engine put it out of commission. But now we're following along as Harrell Engine and Dyno builds a new LS3 based race engine that will be both lighter and make more power under boost. HED shows us all the tricks and we'll follow them to the track to see how they do.