Heat them up, but then let them cool down. It is the cooling cycle that breaks the bond.
It may take two or three heat/cool cycles (i have only ever used a bic lighter, not a torch).
There is a point of "too hot", and it will break down the bonding agent in the carbon.
Put on an old dull broadhead, and use a bench vice that is partially open to draw the arrow down backwards (in a slide hammer action)rapidly against the backside of the head (gloves are good idea).
I have used this on GT Trads, AD Trads, Carbon Tech Safari's, and AB Grizzsticks with no problems over the years. I will go out on a limb and say the Easton FMJ's should be the same.