Not to sound sarcastic, but there are so many variables, not the least of which being it's an almost 40 year old rig, with no supporting information provided, that it's virtually impossible to answer.
Furthermore, if you're needing to ask that question, your knowledge of vehicles and towing, in general, is not conducive to successful road trips in an old vehicle that will be working at high duty cycle.
Theoretically, a little moho like that with a big block and a C6 (even an anemic 80's model) has enough juice to pull a toad, no problem, but again, there is so much more to your question, you, yourself need to analyze whether the moho is mechanically safe and competent to tow and stop the extra weight and almost as importantly, consider where and when you're towing.
IE, cool weather, in Illinois is far easier on the tow vehicle than say 100degrees in the middle of summer or pulling a 6% grade at high altitude.
Good luck with your venture!
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5โ turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold