I have put 9500 miles or so on my W2 headed 408 in the last two years, this includes two Hot Rod Dragweeks, round trip from Phx to Vegas many trips back and forth to work. This also includes 65 drag strip passes.
The solid roller lifters have never been rebuilt and are doing great but I have gone through three sets of Drag radial tires.
The car has gone the best of 11.06 at a 122,