Kurtis , if you have your Demon's primary bowl towards the stern [v-drive setups are diff from jets], I would install the jet extensions [available at any speedshop that sells holley carbs] and make sure you have 30cc primary ,50cc acc pump on the secondary bowl.I think the demon carbs are the same as holleys other than the bowl shape .Demon's bowls were exactly the same as holleys originally and they had to change them to avoid lawsuits ,I think.