To find the correct fuel pressure specification, you should:
* Check your owner's manual: This is the best source for your specific vehicle.
* Consult a repair manual: A Haynes or Chilton manual for your specific year and engine will provide the information.
* Use a reliable online resource: Websites like GM's own service information site (subscription may be required) or reputable automotive parts websites might list the specifications.
Without knowing the engine size, I cannot give you a definitive answer.