422 dyno fail

70 340 4spd bench seat rubber instead of carpet .
All stock 3240

Weighed on digital scales?

My 68 Barracuda coupe is Auto, aluminum: heads, intake, radiator. Aftermarket aluminum spoke steering wheel. But 11.75 disks, power steering, console. 15x9 cast aluminum rims, tubular front sway bar, frame connectors, tubular rear sway bar, 1.14” torsion bars, ProCar buckets

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