The VK was the first entirely Aussie built car with an electronic fuel injection system, unfortunately they used it in conjunction with the 202. As for problems I am not sure, never owned one, but many members on here have, or have had them and know them inside and out and I'm sure they will give you their opinion. Alternativley you can do a search and you will probably get quite a few hits.
If you do the right things to them, the 308 is a solid and robust engine. They are not bad stock also IMO, albiet down on grunt.