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car is a turd off the line

General Tuning Discussion

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09 g8 gt with lsa swap, baby cam, full exhaust, 4" intake, and stock 6l80 with zl1 converter. Tuned on MAF only with hptunersi have 80lb injectors with adjustable aeromotive fpr running at 60psi and dual walbro 450's. Trying to figure out why it pulls a bunch of timing when i launch at the light.

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any ideas?