Priobe, before running out & putting your $$$ out take the time to find a car in similar state of engine build to your own and get a ride in it-speak to the owner-find out all you can. I have asked around & have not found any in depth info at all-either positive or negative, its a relatively new system on the market. I am not judging it, just like you would like more 'factual' info- on paper it looks like the 'Bees Knees'.
In the meantime one 4bbl on a sidewinder manifold will fill the gap with a lot less hassle
Jac Mac