Where should the distributor rotor point?

Where should the distributor rotor point?

The rotor button should be pointing to the number 1 position on the distributor cap when the number 1 piston is at top dead center (on the compression stroke). The pistons come up two times during the combustion cycle.

What is the correct ignition timing?

The ideal ignition timing for power occurs just before the point where detonation or pinging takes place. Correctly timed ignition will cause peak cylinder pressures to occur around 12 to 15 degrees after TDC.

What should the timing be on a Chevy 350?

What should the timing be on a Chevy 350? The timing can vary between 2 and 12 degrees BTDC, the recommended spark plugs are different and even the plug gaps vary. In most cases starting out with 12 degrees of initial advance is about right.

What should the initial timing be on a small block Chevy?

In most cases starting out with 12 degrees of initial advance is about right. Similarly, you may ask, what should the timing be on a small block Chevy? The initial timing should be 4 degrees before top dead center (BTDC). If the mark is adjacent to a higher number BTDC, the distributor must be rotated clockwise to bring it down to 4 degrees.

What is the firing order on a Chevy 350?

The most important thing to remember is that the firing order must follow the same pattern as the engine. The Chevy 350 firing order is 1-8-4-3-6-5-7-2. That means next to the number one spark plug wire will be the number 8 spark plug wire, the number 4 and so on in a clockwise rotation.

Can a HEI ignition system service a 9000 rpm engine?

Because the HEI is such a simple ignition system to use and has the potential to service a 9,000-rpm race engine, I’m not going to delve into endless other possibilities here. If you want to stray from my recommendations here, feel free to do so but consider this: if you are going to do your own R&D, it’s just that and you are on your own!

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