170 Dart compression advise???? please??

Hi, Nat from Canada, I've got a 68 Dart with a 170 that will idle all day until I drop it into gear. It almost felt like the torque converter was locked on, until I did a compression test. From the back of the engine to the front-
cyl 6 = 60
cyl 5 = 70
cyl 4 = 120
cyl 3 = 60
cyl 2 = 120
cyl 1 = 70
I realise that this could mean either rings, valves, or head gasket. I just don't know how to go about finding out. If anyone has any advice, I will pray for you to the mopar gods.