Interesting, not too surprising blocking the interior vents, but I was really wondering about the ducts down the outboard plenum boxes to the rocker panels. Any pictures available showing how they were blocked? Seems there would be a nice advantage to closing them off too. Neat pictures!
If anyone else was on to this, I would imagine that Smokey Yunick was right at the forefront-would be nice to have a little look at Vics maybe?