Lift pump Q re swirl pots

[CNHSS1]

Hi Chaps,
im gonna get around to fitting a swirl pot to my hillclimber soon and have most of the bits. my question is re the type of pump needed for the lift pump between tank outlet and swirl pot. i normally see a 'carb' style pump (facet etc), relatively low pressure rather than an EFI pump, although i have read of some people using the same as EFI pump type as for the feed pump from the swirl pot to fuel rail.
your thoughts and suggestions please

[CNHSS1]

i spare EFI pumps but no carb type jobbies. no issues in using a spare efi pump then?

[CNHSS1]

thanks Guys