Reading through this thread and I don’t see mention of the flexplate at all. Is it new or used? What was used on the dyno? I know the op said he disconnected the converter to eliminate that, but was the flexplate checked? I’ve diagnosed multiple cracked flexplates over the years that have sounded like a spark knock at idle and faded as rpm raised with no load on the engine.
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1967 GTO, 432 (428+.030), 4-bolt mains, factory Nodular crank, scat rods, icon dished pistons, Lunati HR 243/ [email protected], .618/.622 lift, Edelbrock 72cc round port heads, 10.5:1, offy 2-4 intake, Edelbrock 650cfm carbs, Super T10 trans (2.64 first), BOP 10 bolt w/ Eaton posi and 3.36 gears
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07-28-2019, 10:39 PM
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