Jeff, when you say you set the timing to 0.15mm, I assume you mean you set the points gap to 0.15mm? As far as timing goes, I believe the points should open at 2mm before TDC. Also, you didn't say anything about your airbox... my Moby has been very sensitive about air filtration. Do you have the stock filter, or are you using something else?
Just curious, does "TL" mean this is a 40 TL?
On a side note, please let me know if you ever want to sell your red '78 50V, I was watching that auction closely but not seriously interested at the time. Now that mine is running (also a red '78 50V), my wife wants one too, and I thought matching ones would be pretty cool.