The distributor's position determines the ignition timing, which affects engine performance, efficiency, and emissions. Getting it wrong can lead to poor running or even engine damage.
Here's why there's no single answer and what's involved:
* Engine specifics: Different 350s (even from the same year) can have slight variations affecting optimal timing.
* Cam type: The camshaft profile significantly influences the ideal ignition timing. A performance cam will require a different timing setting compared to a stock cam.
* Ignition system: The type of ignition system (points, electronic, etc.) impacts the setup.
* Engine modifications: Modifications like heads, intake manifold, and carburetor will all affect the optimal timing.
To find the correct distributor position, you need to:
1. Use a timing light: This tool is essential for accurately setting the ignition timing.
2. Consult a repair manual: The manual for your specific year and model of Chevy 350 will provide the *base* timing specification. This is a starting point.
3. Adjust the distributor: You'll need to loosen the distributor clamp and rotate the distributor to adjust the timing using the timing light. You'll want to achieve the timing specified in your repair manual.
4. Fine-tuning: Often, after initial setting, further adjustment may be needed based on the engine's performance. This usually involves small adjustments to achieve optimal performance.
In short, you *can't* just slap a distributor in and expect it to be perfect. Proper distributor timing is a crucial aspect of engine maintenance and tuning. If you're not comfortable performing this procedure yourself, take your vehicle to a qualified mechanic.
