Time it to 4 degrees BTDC on a California emissions vehicle and 8 degrees BTDC on a non-california emissions vehicle.
There is no timing belt on a 305 unless it is an aftermarket belt drive system.
All V8 Chevrolets have a timing chain.
Set timing at 36 degrees at 2000 rpm's
8 degrees.
The timing is set and adjusted by the Engine Control Module according to driving situations.
timing belt
The diagram is not on a decal under the hood or in the engine compartment.
The 2006 Ford Expedition , 5.4 liter V8 engine has ( 1 timing CHAIN to each cylinder head , so there are 2 timing CHAINS )
In a 2006 GMC Envoy : Both the 4.2 litre six cylinder engine and the 5.3 litre V8 engine use a timing CHAIN
On a 2006 Chevrolet Impala : The 3.5 and the 3.9 litre V6 engines , and the 5.3 litre V8 engine have a timing CHAIN
yes
It is behind the timing cover on the front of the engine. You will have to remove the timing cover to get to it.