I suppose I could try a rebuild on this beauty and try driving the truck again.... This carb was billed as NOS, but some of the screw heads show signs of use. If it was used, it was lightly used. Either way, it would need refreshing to get new gaskets in it.
So, rebuild the Rochester and try again or rebuild the Carter and try that one? Thoughts? Of course, neither will address the smoking engine issue, only the sputtering and quitting issue.