You should start at 4-degrees before TDC <-this is what it should be
2942E6B7-0D26-E667-F7DC-E162A40E3ADF
1.03.01
On the front of the timing chain cover, drivers side towards the top of the harmonic balancer.
The timing on that year engine is computer controlled. It requires an engine scanner to set the timing. YOU CAN NOT USE A TIMING LIGHT.
You could put a vacuum gage on the engine and time it for peak vacuum. A timing light is still better.
There is a mark on the timing chain cover behind the harmonic balancer(behind the crank pulley). The harmonic balancer also has a slot cut in it so that you can line the crank up with the mark on the timing cover. The mark on the timing cover should sit at the 2 o'clock position or the 12 o'clock position. My 96 Chevy 305 is at the 2 o'clock position.
Just pull the camshaft gear of it should be just 3 bolts
To adjust the timing on a 1992 Chevy 305, first ensure the engine is at operating temperature. Locate the timing mark on the harmonic balancer and the timing tab on the engine block. Use a timing light to check the current timing by connecting the light to the number one spark plug wire and pointing it at the timing mark. To adjust, loosen the distributor hold-down bolt and rotate the distributor slightly until you reach the desired timing, then retighten the bolt.
on the left side of the 1979 chevy!
6 or 8 drgee
There is no timing belt on a 305 unless it is an aftermarket belt drive system.
6 degrees before TDC should do the trick
Top Dead Center
6 degrees BTC