So what your saying is i can do the complete mfi to efi swap using a donor xr2i? My mfi head needs a rebuild so would use the efi head and use a sierra pulley system for the cps.Then i can use everything else from the xr2i and will use my mfi charge carrier as its nice and polished and make it fit somehow!!

Am i correct?

Once the efi is installed is it ok to turn up the boost to say 15psi and the fuel will automatically be adjusted?