However, a general range for a 1974 350 small-block Chevy with a points ignition system would be around 6-10 degrees BTDC (Before Top Dead Center) at idle. This is a starting point and may need fine-tuning based on vacuum advance and other factors. Electronic ignitions might have slightly different specifications.
Crucially, attempting to set timing without the proper tools and knowledge can damage your engine. Improper timing can lead to poor performance, overheating, and even engine damage.
Here's what you need to do:
1. Find your vehicle's owner's manual or a repair manual specific to your 1974 Chevy C10 with a 350 engine. This manual will provide the correct specifications.
2. Gather the necessary tools: This includes a timing light, a socket wrench, and possibly a vacuum gauge depending on the method used.
3. Follow the instructions carefully in your manual. This will guide you through the proper procedure for setting the timing, including how to deal with the vacuum advance.
If you are not comfortable working on your vehicle's ignition system, it is best to take it to a qualified mechanic. Setting the timing incorrectly can cause significant engine problems.