1969 Firebird "Little Big Chief" Chassis Dyno Test
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The first step was to confirm that the ignition timing was still at the 31 degrees before top dead center (BTDC) total, as that was found to be the best setting on the engine dyno. Technician Scott Roschel manned the timing light while Bob Wise raised the engine rpm. The total was only 27 degrees BTDC, so the distributor was brought to the proper value before a dyno run was made. View Related Article
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