torment

I know this is not scooby related,But,Have any of you guys come across...a downloadable car spec site....????...I help quite a few mates out with their vehicles and had a book with all the vehicle datd on...But someone decided thay had more right to it than me...
So i`m on the look-out to replace the item.....Its a car bible....With all the spark plug gaps,timing,c/o2,eta,eta...
Can you please help...?.Cheers guys...Kev.