I own a mostly original 87 t top GN. Car is in original condition now.. But its previous life I'm unsure of. True barn find, and the owner was very vague about past. Car has old school kenne bell ashtray switch panel, and front air scoop. There was an accident on passenger rear but seems minor. Point is.. It will never be a trailer queen, but I don't want to ruin value of the car by all kinds of mods. Will e85 conversion hurt the value.. I have No intention overselling, but I don't want to make changes that will hurt value.. Like I said.. a driver, and it will always be. Just don't want to hurt the long term value.