hey does any1 know where to download good wiring diagrams or does any1 have any they could lend out for 86 z28

Check out chevythunder.com-they got some good diagrams as well as info.

It's time for U to learn how to use the "search" feature on the TGO board. In this case, click on search at the upper right of the page> then advanced search> enter "wiring diagram" in key word and underneath that click on "in titles only" and select electronics for catagory.

Use this search feature to your advantage. There is more information in all the different tech boards, then U can ever possibly use--and believe me, there is no subject that has not been covered before.