If I recall, having been through Yosemite on 120/140 and 120/41 more than a few times, the fog line is 102 in the tunnel. But the tunnel has a steep arc. Our Alpine is 119 and we had no problems. We do hug the center line just to be sure.
Its a long pull up to Tioga Pass entrance station from the west. If you can stop, the campground at Tuolumne Meadows is a great stop to enjoy the high country. A bit of a back track to Sadddlebag Lake affords great views. But
NOT a drive for the RV. Unfortunately the cafe is closed now, last I heard. We would drive up in the car and have fresh pie while enjoying the view.