Quote:
Originally Posted by rexs73gto
If 71 bird was realy true he'd have said it made SOME difference but no matter what you do to the car without changeing partd i.e. heads, headers, intake, rear gears, torque converter, or add to it i.e. supercharger, turbo, You will only get minor changes, that engine was built with just so much hp that you can't make any vast improvements without makeing big changes. It will respond to the fine tuneing a little but it may be as big as 2 10th's or as little 1 10th in the quarter mile but don't expect any huge amounts. Hopefully you will understand this & not exoect to much & then be disappointed with the results , plus be mad at the person who tried to help.
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While I'd agree not to expect miracles from tuning, that doesn't mean there isn't a lot to be gained. Look at engines like GM's 8100 Vortech. With the same internal parts, it was sold as everything from a 325 hp to a 550 hp engine - all it took was a calibration change to wake it up.