I agree with blue00gt, I couldn't feel any difference when I installed my 70mm TB on my stang. It was very very easy though, i did notice a little improvement at high RPM and in gas mileage... We're talking like 1-2mpg, not much, prob not even the cause. I would think that MAF and TB together would provide some difference, but would really become noticable later on with other mods, like High-Flow intake and Heads. I am about to go to the 80 or 87 mm for my car, along with better injectors.
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