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Wintermute

01-26-04 11:24 AM

Timing in high altitude.

I have an '88 GTU and just moved to northern Utah. The elevation here is about 4200 feet on average. Just looking for some suggestions on where I should have my timing set. Right now I think I am at 10 degrees advanced on the leading plug.

black_sunshine

01-26-04 11:29 PM

You should have it set to

Leading: 5d ATDC (Yellow)
Trailing #1: 20d ATDC (Red)

Just get it to idle first (below 1k RPM) and allign the marks to the indicator. It makes no difference of altitude, as that is taken care of by the EGI computer.

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