Driving Issues Carb

[Gianyveedub]

Hey guys, I was driving my truck today (235 1bbl Rochester) and started to have issues. It has been running fine last couple of weeks and today when cruising it started to struggle and started to sputter and bog down. I pulled off on a side road and parked. The truck at idle misses and the truck does not want to accelerate. If I floor it (WOT) it will accelerate and take off normal and feels good, but once I let off the gas and try to cruise, back to the sputtering and bogging.
When parked, if i try to give it gas it will bog down, then rev, then bog back down, then rev and so on and so on. What is wrong, it is driving me nuts, please help. Thanks.