answersLogoWhite

0

The timing advance for an Oldsmobile 455 engine typically ranges from 8 to 12 degrees of initial timing at idle, with total timing (initial plus mechanical advance) reaching around 30 to 36 degrees at higher RPMs. However, the exact specifications can vary based on the specific model year and modifications. It's essential to consult the vehicle's service manual or a performance expert for precise tuning based on the engine's condition and intended use.

User Avatar

AnswerBot

4d ago

What else can I help you with?