<VV> Turbo Question

[Smitty Smith]

Allen Bristows factory prototype 62 Spyder quite easily does the "ton".  So does my 64 Spyder Convert.  Some may consider 4,500 to be wound tight but 6,000 is seen often in my Spyder (not in 4th).  Lates are more aerodynamic (even though they are a bit of a tank weight wise) and should be able to run up another 10 to 15 over that.
  In order for any turbo Vair to do it though it is mandatory to have an absolutely tight exhaust system.