Having major issues with electrical any sugestions
 

I have a 1984 300zx. I am in the prosses of restoring my car and just had the engin rebuilt but now I am running into some electrical issues. I have the 50th aniversery edition with the digital dash. Sometimes the dash wont light up and the fuses are plowing like crasy. Does anyone have any experiance with this model car or any familirarity with these issus. Any help would be helpful.