That machine has little use by the looks of it , lucky find . I know for beauty just 1 min up the road from me but they won't sell it and don't use it i have been asking for 25 years now .
The only thing good about say mid late 80's to 93 Dodge is the drive train the rest of the truck can't hold a candle to a ford of the same vintage anyone who says different never worked as a fleet mechanic on both . the 68 TO 79 Ford trucks were maybe the best ever made .
Here is what i see your tune looks fairly good it's hard to tell idle with pump fuel it nearly always looks rich . Maybe a tad rich on idle , cruise looks good i can't see wide open thottle fuel ring , timing looks good . the heat range could be 1 or 2 numbers cooler maybe . i'm no pro tuner...