4L60E shift points are way off
i just had my tranny rebuilt had a shift kit installed and had a 10in 3000 stall put in and it shifts realy high from first to second and second to third hits the rev limiter 3times before shifting any suggestion why that might be
You need to have the car tuned for the stall , I am assuming you haven't and the higher stall will confuse the PCM
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