Thanks for the responses guys.
The problem is not having gearing light enough to climb, in fact it climbs like a mexican tour mule, It's that I am spinning out relatively quickly. It seems to me a fat bike is more about cruising than speed. I am almost always in my smallest rear cog (11t) and spinning like a mad man. I feel like I need a bigger ring to push. As I said, perhaps with the larger tire footprint coupled with the resistance from the snow a 24t is ideal but I feel like I need more pedal resistance. I've been to Spider Lake and Area 25 with it so far and although there are no big climbs there I never got anywhere near the 42t cog
I talked with the guys at the LBS Saturday and was told that if the chainring was to be bigger it would require a new chain and derailleur. I don't understand why and if that is the case, I will not bother with the extra expense.
@Someguywithbikes I remember you saying that now and I should have swapped it then