Too much pedal travel may indicate a problem.Does the Throw diminish with multiple stabs on the pedal?Does the pedal feel spongy?Has the throw been increasing over time? If there is a yes in there anywhere, your brakes are not right.Fix that first.
if, you used a conversion plate to bolt the master cyl. up to the firewall,just lengthen the rod the thickness of the conversion plate. I threaded mine, screwed a threaded rod coupling on it, then welded it w/ the exact diff. adjusted in to it. then ground it down and dressed it up. has worked great so far! :coffee2: