Standard 400 CI (Cubic Inch) Engine:
* Base model: 265 horsepower
* With "HO" (High Output) package: 290 horsepower
Optional Performance Packages:
* "Ram Air" package: This package came in various iterations, with horsepower ranging from 330 to 370 depending on the specific year and model.
* "Super Duty" package: This package offered even higher horsepower, but it was only available for a limited time and on specific models.
Important Notes:
* These are just general guidelines, and the actual horsepower rating of your specific engine may vary depending on its specific configuration and modifications.
* To determine the exact horsepower of your 1969 Pontiac 400 engine, you'll need to consult the vehicle's original build sheet or contact a Pontiac historian or enthusiast for assistance.
Let me know if you have any other questions!