Drill the carbon with a dremel tool and high speed cutter or a carbide burr on a die grinder. Drill bits will splinter carbon unless it's pretty thick, unless the lip angle on the bit is ground specifically for plastics. Put some masking tape on the carbon, it will help a little with splintering, gives a light surface to mark on, and can save your hood (cosmetically) if you slip with the bit.
Never use a toothed blade for anything unless it's a really fine pitch blade (very fine metal cutting) and the carbon isn't thin. Abrasives are really the only thing you should be using unless you really know what you're doing and have something to practice on first.

As a side note, vented hoods are less likely to fly up because they don't trap as much air underneath as solid hoods. At the same time, vented hoods are also generally weaker because there is less material there. The understructure of most carbon hoods are just copies of steel hood designs, which is stupid. Sheet metal stampings don't translate well to being made in carbon, but don't get me started on that.