Magnum Retrofit

Not sure if you are thinking about adding a power distribution block under the hood, but now would be the time. It'll have all of the fuses and relays needed to run an electric fan ,fuel pump and such. If this is a power steering car, you also may want to look into the bracket from a van, it puts the PS pump down just enough vs the truck bracket to clear the battery tray. I already had an in-line pump ( gsl 392 ) and I'm using a filter/regulator with a return line from a GM car.
I'm also keeping the OEM EFI stuff and I'm almost done with the wiring on mine, basically removing all of the ABS,cruise control and other wiring from the C3 connector harness. I'm shooting for this weekend so I'll let you know what's involved, but initial start up consisted of jumping in 3 or 4 hots and she fired.