Is anyone running a 4.7L???

I ordered a brand new 2000 Dakota with a 4.7 and 3.91 gears.
Drag raced it for three years strait and sold it with 43 thousand miles on it.
Ran low 15 teens with drag radials.I changed the oil all the time and never had a problem.
I have heard of problems with them though.
Last new vehicle i ever owned.
7500 grand gone in three years.....i would rather have more older cool cars then one new one.