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I have had a few things going on outside of working on my old GMT400. I got back to it a little last night. I found that my timing tab is off by 2 degrees. So when initial timing is set to 0 by the tab, the real timing is actually 2 degrees retarded. So my question is how do I deal with this in the tune?
I'd like to leave the external parts alone so that the next owner can set up timing as they should with a stock vehicle to 0 degrees initial on the tab.
The $0D mask doesn't seem to like negative values for initial timing. Do I just add 2 degrees advance to my timing table?
I basically have the timing table from fast355 yet only changing some in the idle area to keep it from surging (May not have been due to timing)
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move the dizzy 2 forward and remark plate
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If I am remarking the plate, do I still set to 0 or am I better off to put in some additional mechanical advance?
Since the great majority of the timing table is advanced, it would seem that adding some mechanical advance would be beneficially to stability.
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most bins are set at zero advance on the dizzy
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some one on here recommended to zero out the stall saver, I haven't tried that yet I don't have a radical cam but it idles and drives better at low rpm's if the base timming is 0 bin set at 22-26 degrezz at the kpa and rpm it's ideling at