Pore is the correct spelling.

Merriam-Webster: Pore Definition
Quote Originally Posted by Merriam-Webster Pore definition
pore
1 of 2
verb
ˈpȯr
pored; poring

intransitive verb
1: to gaze intently

2: to read or study attentively
—usually used with over

3: to reflect or meditate steadily
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