[Schelter]

I came across a site yesterday extolling the virtues of running a daisy chain of ground straps (battery to chassis, chassis to trans, trans to head, head to intake, intake to battery) to improve hp and mpg. A little Google searching found a couple dyno tests that saw minor (3-8)hp gains and some 1-2 mpg gains. They sell a kit for $100+ but found a few people making there own set for around $35. The unofficial "Butt-o-meter" tests say improved low end torque, smoother high end power and better idle. Any science behind this? I know a bad ground strap can cause all sorts of funny things but can a really good ground system help that much? Color me skeptical but for $35 and an hour or two...