My main KJV is a "Hebrew Greek Key Study Bible" by Zodhiates and AMG Publishers, 1991. Key words in passages are underlined and have their Strong's numbers and/or grammatical codes provided, and the Strong's dictionaries and grammatical references are in the back. There is also a full lexicon, as well as a concordance, maps, etc. A fantastic study Bible, and you can get them at amazon for as little as $20.