My book only goes back to 1974. In 74 the timing for both the 230hp & the 275hp was 10 degrees before top dead center @ 1100 rpm. you may find that it likes 12-14 degrees better.
160 horsepower - 2 barrel carburetor 180 horsepower - 4 barrel carburetor
Possible ignition module problem.
According to Chilton's 1971 455 is 12btdc, but there should be a decal under the hood or even on the engine itself that would list this info.
350 cu in with 2 barrel carb, 8 degrees at 1100 rpms 350 cu in with 4 barrel carb and standard transmission, 8 degress at 1100 rpms 350 cu in with 4 barrel carb and automatic transmission, 12 degrees at 1100 rpms
timing CHAIN
Chain.
The best way to find 6 degrees on a 1969 Olds 350 Rocket timing tab is with a diagram which can be found in a repair manual. The timing markings are on the pulley.
you cant adjust this.
A dealer can look up the ignition codes to make a key if one needs to be replaced on a 1992 Olds 98. A locksmith can also help but the ignition cylinder has to be removed.
what are the timing belt marks for a 1995 olds cutlass supreme
Is located under the coil packs
I need to know where the timing chain is located in a 1988 Olds 98 regency brougham, and how expensive a timing chain is.