E85 and return line
Will I be able to use my stock ecu with a flex fuel sensor? If not, what are my other options?
I plan on running a walbro 340 or 525 pump with a return line. Will be using a ls3 rail and external fuel pressure regulator. How are you guys getting the return line back into the tank?
How much power can the stock feed line hold before needing upgrade?
Thanks in advance.

