TBI to EFI Swap

[Square head]

Hello, I'm looking for any info on switching in a 454 multi port fuel injected engine from a 350 tbi. The 350 is original to the truck and the 454 is a slightly use crate engine. the 454 comes with all the sensors & ecu.
Just wondering what issues there are with the fuel system that will need upgrading. Will the pumps need to be changed [dual tanks ]? Any other suggestions would be appreciated.
Thanks.

 

[bucket]

Pumps will need changed to a high pressure version. Other thinks may need upgraded too, like anything on the pressure side that is just a rubber hose with clamps. I'm not sure what kind of pressure the switching valve is rated for.