What do I do next

Depends on the PCV and the state of tune. But generally, the stock Mopar PCV's will change flow if the intake vacuum drops below 14-15 inches. That does not take a lot of cam.... the ubiquitous 268 size cam will drop the intake vacuum that low, even with a good tune; 262's would probably drop the idle vacuum almost that low too.

Different PCV's are not hard to get; there is an MP PCV that switches flow at a lower vacuum level, as well as several others like Fram FV184; that unit was for mildly cammed factory GM V-8's. It fits a larger grommet size.