I just rebuilt and installed a 3.07 12-bolt in my friends '65 A-body with a Muncie M20 and a 462/RAIV cam and the car drives fine. No issue with takeoff in first gear.
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1967 Firechicken, 499", Edl heads, 262/ [email protected]" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. [email protected] mph with a 1.45 60'. Still WAY under the rollbar rule.
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