well there are a few factors here #1 some articalls are writen by writers who dont always understand what they are writing about.
#2 any two engines built with the same parts can dyno diffrent or post diffrent numbers on diffrent dyno's.#3 except for some Car and Driver typr mags that sell cars most arent trying to sell anything but there mag. #4 advatizers do lie look at how you see an exhaust add that gains 30 hp and then you read the fine print that they put a stock exhaust on a vortech equiped 408 and then tested there exhaust against it.
When i run up at this elivation i dont try in the mag at sea level they run this.
just my 2 cents
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89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .
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