Race use...aluminum rods are fine due to limited usage.
Street use...how much do you value your block?
Titanium rods are fine for both, but pricey. They are used in the 1500+ HP Pro Mod Mountain Motors that are both supercharged and on the bottle, so the brittleness tag is a common misconception.
Most rod companies have gone to a heavy-duty steel rod design for high HP and a lighter version for N/A use. The new Crower Maxi-Light rods are about 100 grams lighter than the standard billet and deliver greater throttle response (like aluminum) but in a more reliable material (steel).
I'm looking on you web for the rods, but I don't see the specs and exact weight on grams for the K24...
Can you please send me or post that info?