motor rebuild questions

I have a some questions on rebuilding a 86atc350x motor. Can you use the some of the old parts again? I have rebuilt my crank and was wondering if I could use the old timing chain, timing chain guide and tensioner or should I replace them at the same time. What are the specs for replacing the timing chain guide and tensioner? Is there a website that gives you the specs on different parts and when you should replace them for a 86atc350x honda.
Thanks Hondaguy :?

[mike from long island]

i never rebuilt a 350x motor but i did do my 85 tri-z motor. if i was you i would replace anything that looks questionable. fix it now saves ya from trouble later. good luck mike