Q about computer advanced timing

[Chipdog]

I know you have to have the plug out to set your timing but what should it read with the plug in? If you rev the motor should the timing go up and about how high? I am having some power issues and have had computer problems in the past. Just another idea.

Thanks for the help


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92 GT Convertible
Hooker Headers, H-Pipe, Flow Masters, 4.10s, BBK 1.5 drop, 73mm Mass air, 65 FMS TB, FMS Aluminum radiator, T-5 swap with a Steeda shifter.

And a Small Blow Job