Pressure/Radiator cap.. lbs?

[SpaceGoat]

Ok im confused.. I went to pep boys, they check the computer and the only caps they have are for 16lb. The Haynes vette manual claims 15lb and the corvette booklet that came with the car says 17lb. I did a check on carparts.com for the hell of it and they say 16. So uhm, yeah -_-
Thanks,
SpaceGoat

 

[ffvetteman]

Id go with the book that came with the car.