I have a few questions that I need help with.
My engine misses and runs pretty rough in sub freezing temperatures. It has started up on the SECOND TURN down to -12F so far. Still runs like **** once it has been running for a few seconds though. Engine runs fine when warm.

Car has 176,000 miles. 1984 300D turbo.

I know that I have an algae problem, I just ordered stuff to make that go away. I am thinking that it is possible that my fuel lines running between the pump and the injectors could be gummed up with algae. Is it plausible that the algae has gummed up the fuel system enough that it affects the engine at low temps?

Could the missing and real rough idle be compression, timing, bad injector spray? I am going to get my injectors checked as soon as I get my other car back. [Had to borrow it to one of my brothers...] I just adjusted my valves, so unless I majorly screwed something up valves are not the issue. I checked over my work multiple times, and I am extremely attentive to detail, so I am certain I didn't mess the valves up...

Any ideas on what could be causing my problems?
When I pull my injectors I plan on checking my compression, speaking of which, what should my compression be?

Peace

Chris

EDIT: What additives should I be using in the coolant to prevent cavitation?