Carburetor Choice for my Dart

How much cylinder pressure do you have?

I have a 367, and at one time, I ran the FTH version of that cam. I liked it a lot! Made a lotta lotta tire-frying torque with it, and it was easy on gas.
I ran Carters from an AVS to a TQ and Holleys from 600 to 750s. It liked them all, but the 750DP was what stayed on there. But ....... I ran over 180psi cranking cylinder pressure .
With open-chamber iron heads,you are sorta limited to 160psi, and the bigger carbs while making more absolute power at some higher rpm, will likely be a lil mushy at lower rpms..... but your 3500TC has that covered.
On the street, I would suggest to just run whatever you have; carbs cost too much to play around with nowadays.

If you need more power; figure out at what speed and rpm, then gear your car accordingly.

I run a fuel-stabilizer to prevent gumming up.