If I got 14.0 or even mid 13s after a 45 minute drive, I'd be ecstatic. It's 115 heat index here today. Humid. My reman dips mid 12s. Winter time it's at least .5 higher. 13.0 WOT
Many moons ago on the forum, there was a member or 2 fabricating ac type duct tubing from the hole next to the passenger foglight, then snaking it back to the alternator for air flow. Maybe a little shield as well. They reported higher voltages consistently. Anyone else fab'd something up?
I've never seen below 13.9 and I live in the Florida heat and humidity.