I just finally got my car on the road and it started to shake really bad and is making a weird sucking noise at idle. It's also back firing at higher RPM's under load. There's a ton if white smoke and it doesn't go away when warm. Is it possible I lost my timing on the injection pump and it would cause this? It was running great until about a hour of road time. Now it won't idle for poop and dies out quickly.

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84 300sd 2.47 dif 360k
26 mpg needs lots of love
given to me in pitty

89 civic hatchback auto 140k
33mpgs soon to be low to mid 40's
been in the family since mile 1

85 300d with unknown knock. driven over 30k with knock and still going. sold for $800