I know this is an old thread - but has anybody else had experience with these?
Btw - since I originally posted this I have installed TWO hyrdratech boosters sold through VB&P - and I built one from scratch (on Corvettes) - that is an AMAZING braking system - however, my 69 Camaro is SO space limited with the hidden master cylinder in the driver cowl - and I'm still looking for more assit in stopping the car.