I bought a new 2004 Mobius LSV w 310 Ingmar at the Austin Boat Show. Now, after reading several BB postings, it sounds like I should have seen if I could go with the 320 EFI. I haven't picked up the boat yet. Is there any way to upgrade the 310 carb to an EFI without a complete swap of engines (i.e., can you remove the carb and add some dealer EFI)?