Im no expert, but Id say if your getting good throttle response from the motor in park/neutral and it rev's/idles fine, then I'd start with the tranny and work your way down the drivetrain?
Hope you figure it out man, sorry to hear shes bein sluggish!
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2013 ZL1 Crystal Red Tintcoat, Stock...for now
1968 SS/RS 396- being resurrected.
2011 SS LS3-Cammed, bolt-ons.(SOLD)
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