My 53 chevy PU has horrible firewall flex with the manual brakes due to cowl rust over the years and repairs. Im running a dual bowl MC, drums out back and discs up front, truck stops pretty good but i feel could be better and stopping the flex may help some. I was looking into one of these billet firewall mounts to stiffen up the area. few guys i talked to on this say this will greatly affect pedal ratio because its pushing the master further out from the firewall and affects pushrod engagement, it somewhat makes sense but i am not sure because the pushrod length is adjustable and all. What do you guys think?