I have a similar 383 (think 19" vac at idle) and have a similar breather on the passenger and PVC on the driver and haven't experience any problems after installing a Moroso catch can between the PVC valve and the throttle body. The amount of nasty crap at the bottom of the catch can is surprising considering it was going straight in to the engine before. I remember finding a great site that listed out the different breather setups (NA vs. turbo) that I'll try to find and post on this thread.
Here's what I have:
Breather -
https://www.spectreperformance.com/s...aspx?prod=4919
PVC -
https://www.spectreperformance.com/s...aspx?prod=4921
Moroso Catch Can - (got it for $39.99 on Amazon, total screw up on pricing)
https://www.amazon.com/Moroso-85474-.../dp/B004K9BIY4
