I worked with a guy at Whipple several times, trying to get one of their superchargers to work with one of my intake adapters; I thought that would be a pretty cool option. One issue is to really do it right, you need an intercooler installed below the supercharger. That led to some pretty cramped spacing that we didn't think would work. Along with that you have the issue of the belt getting in the way of the stock FE distributor (which would be solved with a crank trigger, coil pack ignition, feeding the charge in from the rear (ducting gets in the way of the shock towers and export brace on a Mustang/Fairlane), injector position and plumbing, etc. If you went to a dedicated manifold for the Whipple, you could raise up the supercharger enough to make the intercooler work, which is the major hurdle, but that would be a low volume and expensive casting that would stick through the hood, if you could even find a foundry that would do it. Raising it to stick through the hood kind of defeats the purpose, IMO. Anyway, it is not an easy problem, but could be done with the right custom parts.