Yea i'm running the GV set up on a 68 charger , got a 4.1 rear so it helps on the motorway , use it on the track too , is good for 1200 hp , although GV will upgrade to 2000 hp if needed.

Not many problems on installation , but had a control box go bad after a year , they sent a replacement straight away.

Unless you're real quick i don't think it's an advantage on the strip using all gears , i only used 3 over as the old motor ran out of steam through the traps (6200rpm).