Your snake is never gonna eat if you do not provide proper husbandry and 80.4 on warm side is not proper husbandry, and considering the temps it's actually better that it does not eat, eating with low temperatures that do not facilitate digestion is only gonna lead to regurgitation.
And by the rest I will still assume that you do not have a thermostat which that will lead to burn and fire hazard.
Again you still have a lot of research to do because obviously research have not been done.
Husbandry should be your first priority feeding the second, if the first one is not met the second will not occur.