Go pick some local help from over at
www.nastyz28.com.
Nice car. Looks like its going to need some rear metal work, some new shocks, and some rims with more backspacing
Interior looks really good. Engine doesn't look none too bad.
I too say the timing is too advanced, causing the 'dieseling' when it won't shut off. Just a small turn clockwise should fix it some if you don't have a timing light. And I mean a SMALL amount too....while its running....