ZK EFI motor into a 72 model Mustang

[last fairlane]

Hi all
Ive got a 72 model Mustang convertible
it has the old 250 pre crossflow motor and a C4 trans
now I also have a 351 Cleveland and FMX
sitting in the shed

but now I have just bought a ZK Fairlane
with the six cylinder EFI motor in it

Im tossing up between the V8 and the EFI six

has any one out there fitted an EFI to a carb motor

Ive done it before but it was an XE EFI to an XE carb car
so every thing bolted up OK

Just looking for some info at the moment

the V8 would be the bees knees

but the six would keep everything legal

when I changed the XE motors
the computer and loom werent a problem

so Im assuming it wont be on this car either

also the ZK will give me 4 wheel discs
thanks John