Carburetor Question - Is this a good call?

And just a thought here -how old is the gas in the tank?

4 days. That's the thing - it runs JUST good enough to cruise about town and look bitchin'. Starts great, cold running wonderfully, warms up and then starts acting like an asshole. At stop lights i kick it in neutral when warm otherwise it'll sputter out.. (i'll raise the warm idle a bit more to help that tonight some) Also, when i want to push on it some a lot of times it bogs out and almost dies.. let go of the gas peddle and then let it come back to life.. then softly continue.. annoying as F.