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Originally Posted by Sox
As you say, the 0.2 sec is most likely due to the chip, as the 3.9 gears appear to have done nothing at all. This is clearly evident by the lack of improvement in 60' times. MPH is slightly up, again because of the chip.
Something is very wrong with the low end power of your setup, and I'm not confident that it's the extractors. Whilst good headers will improve low down power, the 3.9 gears should have improved 60' times. Something else is wrong here, though I don't know what as yet.
3.9 gears should provide easy wheelspin from a standing start, and you also said you have no traction problems
Have you any more details and history of the car?
Rick.
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Previous owner was a guy in his late 40's. Full log books and was stock as a rock when i got it. You after anything in particular???