I wanna run EFI hardware quad throttles, they mount onto a DCOE weber manifold, will probably run megasquirt injection and run what ever injectors similar sized EFI engines run.

Some people are running motorbike tbs, do a search, there is plenty of info on here about it.

Some bloke has a set of toyota 4ag throttles for sale at the moment.

there are many options, all comes down to your budget.