There's no bluffs in his range because there are no bluffs in his flop check calling range and nothing has changed. The check call meant that he had at least a decent hand, and he's now telling you he has the upper end of his range.
Quote:
Originally Posted by Grindcore
Probably nothing, but that's OK because you won't get exploited for it. If you think he'll actually shove 100% on the river since you can't call with this line, then call, and start checking all your stronger hands on the turn aswell.
This. If you actually had to call here, your perception of the guy wouldn't be "good reg", it would be "psycho aggro guy who never folds cbets, pick lines which induce bluffs at all costs".