Carb question stock 340

I recently got a 74 Plymouth satellite with a 340 and a 750 Holly DP. The Carb doesn’t have a PCV valve attached though I‘ve read there’s a spot on the back for it.

I’m debating cleaning this carb and keeping it or switching to a new quick fuel 650. I’ve read differing opinions on which is better for my stock 340.

I plan to use this for cruising so street use is most important but want a decent amount of pull when I occasionally punch it.
Thanks for your opinions.