I'd have to take a look under my car to verify, but yes, I have the factory unbaffled tank. I'm 99% sure the factory sender is still in place; however, I am unsure where the fuel line exits the tank.
But essentially what you are saying is to remove the current fuel lines and replace them with the kit above. Assuming I have 6AN line, I can use my current setup as a return line back to the tank, correct? Would I use the Holley Blue in the return line or just toss it?