Here's the God honest truth. 94-95 S351R's for those that have come up for sale are selling all over the board from mid 20's to low 30's. I'm talking about 50k mile cars to 5k mile cars. I am offered money for mine every time I show it. It's only because it has very low mileage, has every option you could have possibly ordered on a car then and it's near perfect. Strangely, there have been a few S351's for sale lately that have an added blower like Footnfans car. This is obviously the single most desireable upgrade you could make to an N/A S351. Heck, I'd do it also, but like he said, do not pass go, do not collect your $200 because that truck motor is gonna pop. I don't see anything wrong with adding a blower, but the purists will always argue that since it did not come with it, it hurts the value. Just like Scott said, after 97 all of the S351s were blown, but they made less of them therefore they are a littel harder to come buy. The 97 and up cars are OBD II also and recieved some fuel and tune advancements but beware they still are not bullet proof. The 99's are the brass ring as they are the first year of the new bodystyle and still hold a lot of value. Most hovering around 40-50. Nobody bring up the Barret Jackson slip again. Converts add anywhere from 3-5K and they better be clean also. Anyway, as you know that white one S351 N/A on ebay has 49k miles on it and the guy will probably take 18k. I know, I know history has showed us that in the long run, well in maybe 30 more years or so, no-one is going to care about high mileage on a car as long as it's complete, not re bodied, and not completely wrecked. What I'm referring to are 65 and up Shelby Mustangs that are hovering all around 70k on the extreme low end to upwards of 200k. Well, 1994-95 S351's are just a decade old. If you are a young guy and want a good investment, go buy a house. If you want a daily driver just forget about an S351. altogether. Listen to someone who knows. If you think you are going to keep this car forever, find exactly what you want and can afford and go for it. Don't get me wrong, I love the power potential behind the 03/04 Cobra but if you have not owned a properly set up blown 351 then you have no idea what I'm talking about when it comes to torque and seat of the pants excitement. The power with a Cobra is so linear and refined compared to an S351 it's apples and oranges. Once again if you have not owned one or have had a chance to spend some time with one that has been properly set up then you have no idea what I'm talking about. You need to get out and drive everything you can. Make up your mind then.