Ok you mechanical experts I need some help diagnosing the problem with my Blazer. I had a short on both the front harness and engine harness that caused a small fire on both harnesses. I've replaced both harnesses and put a new battery in the vehicle and now it won't turn over. It will just crank and crank but will not turn over. Any idea on what it could be? It's been converted to an internally regulated alternator and HEI if that helps.