I've had my '87 up to an indicated 103 mph once, I don't like to push it
above 95 mph.  It's mostly stock except for headers, intake and it's
balanced.  My '61 bus on the other hand has been up to 66 mph (apx. 4100
rpm), 1192cc 40hp stock except for Wasserboxer 2.1l 1.1:1 rocker assemblies
and it's also balanced.

dave
251.org
87 Vanagon
61 MIcrobus