I actually own a Cadillac Sedan Deville with the V8 472 Cu, it only has 39000 original and documented miles, he rides like a dream but I don't know how much MPG is actually doing but i think is lower than 9 MPG. So this is my question:
I Want to install on it an edelbrok or holley EFI System and increase the engine compression to 13:1 or 14:1 (or 15:1 if is possible) to use it only in homemade ethanol (cheaper and cleaner than gasoline), is possible to do this? How much MPG can I expect to get doing this?
I can be happy with 12 - 13 MPG on city to use this like my semi - daily driver
Thank you everybody