To paraphrase JB.  "A pirate looks at 50 twiced".  Welcome, Billy, to the
ton-up brick club.  Geared .77 top with 215/75-15 and the wide powerband of
the venerable SVX six and sufficient California Superslab (I-5) tonning the
brick is fairly easy.  SVX pulls handily to 6500RPM.  Now stopping the brick
is another story and heavens forbid you have to swerve to avoid suicidal
ground squirrels.

Didja notice that the van got imperceptibly shorter?  Fitzgerald contraction
probably.

1/2MV**2, where V=100mph and M is 5000lbs is a sizeable amount of energy to
put through the SA disks.  Y'all be careful out there.

Didja