Missed a shift, now runs warmer than it used to

[dashapht]

68k miles. It started immediately after the missed shift (on the way to the dragstrip it was where it normally is, on the way home it stayed at that notch).That was Tuesday night and it's now Thursday night. It's still at the notch.) My engine is BONE stock. Not even roller rockers. Maybe the guage is just screwy or something. It at least works partly because i can see when the thermostat opens.

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1993 LX Coupe Reef blue w/grey int. 68k miles Mac long tubes 1 5/8, 2.5 inch Pro chamber, 2.5 Inch Flowmaster 2 chamber cat back, C&L 73mm MAF, 25% Underdrive Pulley, Mac Cold Air, Tri-ax shifter, 3.73, auburn diff, motorsport alum. driveshaft, BBK subframe connectors, Cobra R replicas with 255/40/17 Nittos , best time on radials 9.26@77 in 1/8th with 2.08 60' Just got ET streets. New times to come.