Stop in for a cup of coffee
At some point there is little return for effort.
I don't think Dave ever reinforced the K or the LCA's on the Goldfish even though he was autocrossing it on r-comps.
I do think the early Barracuda's are farily rigid to begin with for a car of that era, and certainly stiffer than a 'vert.
MY 1966 FORMULA S PLYMOUTH BARRACUDA