I live just outside of Denver, Colorado. When the truck is sitting in the
garage, it is at an elevation of approximately 5,280 feet. Then, going into
the mountain passes, you can easily reach altitudes over 12,000 feet.
When I adjusted my timing, I found that the further I advanced it, the better
it ran. By advancing the timing as far as possible by hand, I set the timing
and measured it with a timing light to be 4º before TDC.
Is this OK? (The manual says clearly, not to go past 2º before TDC.)
Also, I have heard that you should advance your timing 1º for each 1,000 feet
in elevation. Is there a limit to this rule? If I go up to 12,000 feet, can
I advance the timing to 10º before TDC(2º after TDC + 12º = 10º before TDC)?
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