I was recently in a discussion with another SA enthusiast and on his car he'd installed approx 1/2" spacers in-between the upper shock mount and the tower bracket. I've also seen OVC Mustang's replica r-models with this mod. This enthusiast stated it was a Phil R. mod for r-models but it's something I haven't seen documented anywhere in the past.
I can see the benefit of moving up the shocks, if you've lowered the car, to restore them to their optimal operational range and prevent bottoming out but I'm more interested if it was a mod done in the 60s or something created recently.
Thanks!
Brent