Once I get it at 24 degrees on the COMPRESSION stroke and install the pump, is it safe to try and start without the fine drip timing? I'm sure my original lines will hold the pump somewhat close?

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83 300CD- sanden, dual p/f condensers, 160a alternator, ect
91 300TD- 722.6, #22 head, 3.5L IP, w140 manifolds, ect