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Originally Posted by neverwouldof
Power surge.... thanks for your input! i am going to take over to a recommended engine performance shop that works on FE's when they have an open spot. Hopefully they'll tell me some good news. The dyno shop said if any of there rice rockets had air/fuel ratio's that lean they would go BOOM!
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Optimum A/F for a naturally asperated pump gas motor is in the 12.8-13.2 range. Any higher than that is too lean. For forced induction or nitrous, it's 11.8-12.2. That might be what they are used to. Little turbo motors.
One more thing... what trans do you have, and what gear did they pull the car in? You want to have the car pulled in 4th (that's 1:1 on both a toploader and 5 speed). If they pulled the car in 3rd or 2nd (common in some shops), you will have much lower numbers.
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Sal Mennella
CSX 4241, KMP 357 - sold and missed, CSX 4819 - cancelled, FFR 5132 - sold
See my car at CSXinfo.net here >> CSX 4241