I saw this earlier and was thinking he looks big, apparently aiming to come in lighter though. Sounds like they are cutting his weight by how much he talks about eating after the fight.
I reckon around 10lbs lighter than last time, which is probably more his "natural" weight being an islander. But yeah his arms look huge here, he is reaching his final form.
Parker has always been huge. 6'4 and 245+ lbs is a large man. Difference is whether its muscle or fat. I can't tell in that video.