Fuel injection with a 6-71 on the street.

don't see anything streetable in that combination the size of the fuel lines alone says that's probably set up for alcohol the other thing that concerns me is why would you need a boost referenced timing controller your boost will be consistent with a supercharger versus a turbocharger so there is no need to pull timing back with higher boost as your manifold pressure will always be consistent we're talking roots style blower not a centrifugal ,centrifugal offer increased boost with rpm similar to turbo chargers roots type super chargers have a fixed amount of displacement for engine revolution there is a guy on here who has an incredible twin turbo fuel injected dart I believe his fuel injection is hand built from the ground up I would definitely seek out his posts it's amazing what he has done