Timing has been set at 8BTDC to 0TDC to retarded so much it lacks any power at all and still overheats.
The radiator is supposed to be a stock brass/copper I assume, not aluminum, radiator from a newer dart between 67-72 as I remember, it has been a few years since I bought it. Overall it fits the opening but is thinner than the original one.
I bought the radiator off craigslist still boxed but it was rebuild for sure. Ill check the row count and fire her up today to see if I can better document the heating situation.
Cheers and happy spring.