Stroke old 340 or new crate engine

Well maybe I was a little harsh. It did run real nice with great throttle response just not awesome performance. My last project was a CTS-v wagon 6 speed manual with 565hp at the tires. Maybe that's my problem
Then I suggest a 4spd auto at a min. if you can!
Funny. I’m going through the same question in my head. Except my 340 is in a Coronet and I’m debating between stroking my 340 or building a 440. I have already purchased a 440 block but haven’t made up my mind yet.
I suggest the big block for the B body.
You can find excellent information from member Andy F.