1969 Dart 340 cam selection help !!!

Abodybomber is nail on the head, with cylinder head flow against cam selection with this kind of build.

That's still a lot of bump, from duration. LSA at 112 will help a bit increase in compression, if you need it. What is the centerline advance of the cam? That also changes compression. Bumping the LSA also helps with idle quality.

It's still gonna have a chunk of overlap at 300 degrees. That's a ton of duration.

Something you should also consider is that while your static compression ratio goal is 9.5:1, your dynamic changes with LSA and degrees of advance from centerline, closing the intake valve sooner, before the piston comes up from BDC.

You should plug those numbers into a good dynamic compression ratio with your altitude to come up with your dynamic ratio, which is actually what you will end up with.

Ask your machinist what his goal cylinder pressure is. That's all that matters in the end.