Steer Extender or Carbon Road Fork
You said in a comment that you switched from a 100mm stem to 120mm, this made it worse so you went back.  I suggest you try an 80mm stem, maybe it will be even better.

As for raising the bars, you do have some options:


Get a high-rise stem.  There are plenty available, look for 25 degrees or even more.  Like this: http://salsacycles.com/culture/new_promoto_25_degree_stems
Try a riser road bar, like this: http://www.fullspeedahead.com/products/handlebars-road/k-wing-compact-handlebar/
Lower your seat.  This raises the bars' relative position, which may help.  Don't lower the seat too much though.
Buy a new fork.  Either get a longer steer tube which you can put more spacers on, or get a carbon-legs, aluminum-crown model which you can use a steerer extension tube in.