Help troubleshooting miss at all rpms

[Hoodooman]

Hi all, new guy here back again. I have a 52 customline 8ba three on the tree. Before I explain further, I may follow everyone's advice soon and "send the carb to charlie in ny."

I pulled this car out of a barn, but it had run at least 10 years ago. The car had (has) a pertronix ingnitor I in it, the one that is recommended to use with a stock points coil.

I just recently got it running:

- rebuilt 94 carb. i don't recall what kit I used.
- new coil (.6 ohm 6 volt)
- new plug wires and plugs (7mm supression wires)
- new cap/rotor
- new stock style fuel pump
- new gas tank and sending unit

The engine has a bit of a miss and slightly shakes at idle, and all rpms. As rpms increase, the shake gets worse. As if one cylider maybe isn't hitting.

I have spark at all plugs. Could the carb be the culprit? What should I do to continue troubleshooting? I've driven it about 45 miles total and it doesn't seem like it would be down on power, but it's my first time behind the wheel of a flathead. I don't know, but I imagine that it's never been apart and looks to have 122,000 miles on it so its a bit tired.

As you can tell I'm not knowledgeable about flatheads but am here to learn.

Thanks for any help!

UPDATES:

- all valves in engine are moving (doesn't mean they're sealling of course). I verified this with a snake cam.

I did a cold, dry compression test with carb removed and all plugs out. It's not good:

1- 80
2 - 70
3- 75
4- 90 (this is actually the cylinder I thought was the problem because I didn't hear any difference when disconnecting the spark plug wire when it was running)

5 -100
6- 60
7- 70
8 - 85

Afterwards, on #6 I did a wet test and it really didn't change - I saw about 65psi. Maybe a valve isn't sealing?

A wet test on the other low cylinders saw about a 10-15psi change.

I don't have the money to put into this thing. I'm thinking about pulling the intake and head, and trying to look at the #6 valves closer.