What is the timing specs for a 68 Pontiac 350?

The timing specifications for a 1968 Pontiac 350 engine typically call for an initial ignition timing of around 4 to 8 degrees before top dead center (BTDC) at idle, with the total timing (initial plus mechanical advance) reaching about 30 to 36 degrees BTDC at higher RPMs. It's important to note that these specifications can vary slightly based on the specific model and any modifications made to the engine, so consulting the factory service manual or a knowledgeable source is recommended for precise settings. Additionally, using the correct fuel octane rating is crucial for optimal performance.