I have been trolling thru the threads in the electrical section and I have not found anything definitive to answer the question of differences between the wire harnesses. SS/TC cars are harder to find - and more expensive - than SS/SC cars. Attempting to use a SS/SC donor for a SS/TC build may become the only alternative for some of us. Short of pulling the electrical manuals for the SC and TC wire harnesses, has anyone had experience with this? Can the SC (or even NA) harness be used for a TC build with some modifications?