G614's are made to run at or near that pressure ... pressure is part of the equation on how the tire gets its load capacity. If you have em ... run em at what they are designed for. Go by a load chart if it will ease your mind. Believe me ... if a tire blows while in motion ... it won't matter if it was inflated at 80 psi or 110 psi ... something is going to get torn up.
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