[jrussell]

Mike,
For what it's worth, I have over 5 years experience and am currently approaching 14,000 miles on my car with the 535 hp. version of the 460. I love the car, and as stated by Tony above, the back two plugs on the drivers side take time to change but it is a minor inconvenience. I had the car built to my specifications and I am very happy with what I have and I do drive it every chance I get...which brings me to my question to you!!
I see from your profile you are 14 years old. Why are you questioning engine choice when you aren't even old enough to drive yet! My son is 15 and will be taking driving in the spring, but you should also know he will not be able to drive my Cobra untill his 25th birthday due to insurance restrictions, not to mention a heavy dose of common sense!!!
Mike, these are very unforgiving cars, and are absolutely dangerous to both the driver and anyone else on the road for the young(or old) and inexperienced. This is NOT a car for the young, IS NOT forgiving and has NO modern safety features (traction control, anti-lock brakes, air bags, side support) that were engineered to save your life.
I understand passion for these cars- all here have that- but your pointed questions lead me to think you might have a thought this might be the car for you. It might be, but you realistically are about 15 years and a "few" other cars away...just as my son is. The ONLY advantage is he will have the opportunity to inherit mine some day, but he faces the same route that you do and I do know he will have gone to a high performance driving school before he gets to drive my car!
Good luck to you, and Merry Christmas!
John Russell