The best way to find the weight range of the bow is to crank the limb bolts all the way in and weigh it, or have a shop do it. You can probably expect it to go a few pounds over it's limit, eg. 72# for a 60-70. Anyway, subtract 10# from the peak and this should tell you the 10# range the bow is designed for.
As for other info such as string and cable length try this.
www.archery [email protected]
Hope this helps.