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Uhhh, Me 
I've got several LS6 tunes from stock to mild built and am comparing the tables to mine. I think the last time I changed the main spark I must not have saved it so now I changed it all back and I'll write it. Also going to get rid of TM, I think that's a big issue with retard
2000 Sierra rcss, LS6, xr265hr-15, HP Tuner, B&M, traction, cai, 2-4, 3.73 G80, Centerline, Pacesetters w/custom pipes and mufflers

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