what advantages does the pro-ram offer over the super-ram ? when coupled with a dfi gen VII with sfi, do they both pull about the same fuel economy ? is one better than the other if your going to use turbochargers ? Im looking into this for my 400 setup so i need something that is going to be able to breathe _really_ well and from what i can find its pointing me to the pro-ram but i dont know what the differences really are between a single plane vs a plenum style efi setup. any input on this is appreciated.

Thanks.

Edit:

After further research, the real question that i want to know is what are the advantages of running a single plane efi like the pro-ram vs an aftermarket tpi like the hsr or a super-ram ?