That depends on the year of the vehicle. The newer 350's have a "knock sensor" that's supposed to sense fuel pre-ignition and briefly retard the timing during periods of heavy acceleration. If THAT'S what's wrong, just replace the knock sensor.
adjust timing 4.3 V8 engine
Adjust your timing
how do you adjust the timing on a 1977 350 Chevy engine k-10
adjust your crank back a bit
It's a tool that helps you adjust the timing of your engine.
You can not set the timing with a timing light on that year engine. The timing is controlled by the PCM./ Power train control module. You must have an oBD2 engine scanner to set the timing. If the timing is off then the check engine light will be on.If you have not removed the distributor are moved it around for any reason then the engine timing is correct already. No need to adjust it. Computer does it.
Adjust timing and/or quality of fuel
The correct timing for a Mercruiser 3.0L 140 engine is 6 degrees BTDC. for a Mercruiser 120 the correct timing is 8 degree BTDC.
This is a complicated process and is individual to each make and model engine. Basically adjust valves, adjust turbo waste gate, adjust injection timing, ensure the pump makes correct pressure and volume, ensure the nozzles or injectors perform correctly and don't leak.
no
By advancing or retarding the spark.
THE TIMING IS COMPUTER CONTROLLED. It requires an engine scanner to set the timing on that engine.