I have have been fussing with the timing on my 69 GS400 on and off for a few years now. I put a Pertronix setup in it. Works great. I have the timing set so it starts and runs fine (I used Larry's Power Timing Thread), but something doesn't seem right with the timing. I purchased the car a few years ago and the documentation that came with the car is spotty. I know it has some sort of mild/moderate cam, and I know it has TA 1.65 roller rockers and the heads were removed and ported, so I know it is not stock. Initial timing works well at about 15deg. However, the total timing is around 50-52 degrees, which doesn't seem right to me. It seems way too high. The mechanical advance seems way too much. Nothing in the distributor appears to be worn. The only thing I can conclude is that the actual distributor is not the correct distributor for this motor and that someone before me used the wrong one(and I have spent a few years trying to make something perfect that never will be). I know the correct part should be 1111335, but I cannot find that part number on the distributor anywhere. All I find is a patent marking PATENT 2769047. So, I know it's an original GM dizzy, but perhaps not for this motor. I'm attaching a few pictures. If someone can tell me if this is the correct distributor and if it isn't what it actually is for (out of curiosity). Thanks!