Here's where we are, I bought the '72 Super with a 1600DP, I put on a bugpack header and turbo muffler, removed the incorrect 30/31 PICT, and put a very good used 34PICT-3 on in it's place. Iv'e got it running pretty well, and it is very driveable, I can't seem to be able to get the timing right unless I do it by ear, I have a dual vacuum dizzy. I put the timing light on the front passenger side wire (#1 on my vanagon I think), disconnected the vacuum hoses and pluged the carb ports. and the notch in the pulley stays about 1 inch to the left (advance) when it is running good. If I retard the timing enough to get the notch in the center, the engine will die, this happens no matter how the carb is set up. I threw the timing light out, and set the carb and timing by ear, and I have it running pretty good and smooth, only problem is a slight rough sounding idle, but good throttle respone, and if you rev it, it tends to linger at high idle a few seconds and then settle back down to normal idle. Oh and the best way I found to tune it was to remove the vacuum retard line entirely, and plug that port at the carb. Since this is my first bug, I would really like to hear what seasoned experts have to say about my mis-adventures into automotive mechanical history.
Jerry