What's your time limit?
You can drop fat by going very low carb, but it may be hard at first and your performace may suffer a bit. But it will be the quickest way to lose weight.
You can then continue to eat primal but add in more sweet potaoes, white rice, white potatoes etc once you've lost the weight you need to, and up the excersie again - you will probably find it hard to excersie at the same itensity and time while running on fat - it's possible but takes time to adjust as I understand it.
Or you can go for a moderate carb approch, eating roots, tubers and sweet potatoes, maybe a bit of rice or white potatoe on really intense training days. This will probably take longer to lose weight but you should be able to carry on training in the way you are now (may be some adjustment time though)
If you want to change your training a bit to go lower carb you could do an hour at say a 3 - 4 min pace for your fat burning move slowly instead of the 30 mins 2 min pace, then on the intense days do some shorter crazy ass interval high intensity sprint training that leaves you hanging after less than 15 mins intense work.
You know all those pictures of Adam and Eve where they have belly button? Think about it..................... take as long as you need........................