Like Daurice said, 80 might be a little bit high for the eggs, we incubated ours at about 78 at the highest and they can hatch between 60-120 days. we didn't put our eggs in an incubator.. just in the reptile room on the snake racks and they stayed the perfect temp (another choice incase you cant get your incubator low enough..)
Also definitely make sure that the vermiculite isn't too wet, the eggs will mold if it is and won't hatch.
Hope you get pretty babies
