EPOC experiences?

Having recently started running with the C25K program, I found that my heart rate was much higher than the recommended 65%-75% of max HR for weight loss and fitness. However, reading up about anaerobic exercise and high intensity exercise having a much bigger burn of calories after the period of exercise (EPOC) than the lower intensity equivalent, I wondered if this might not be a more effective way of getting fit, AND losing the lbs quicker in the process.

Does anyone have any experience or knowledge on this subject they would like to share?

thanks
Donna