found these excellent
GOVERNOR RECALIBRATION KIT Installation Instructions be it for the B&M brand
here are a couple highlights:
"The B&M Governor Recalibration Kit will allow you to raise or lower, relative to vehicle speed, the points where your transmission shifts." well that sounds like exactly what we are looking for
it goes on to say:
"The B&M Governor Recalibration Kit will not substantially change the quality, or crispness of the shift. This is done by recalibrating the valve body of the transmission." good to know, as some of you have already pointed out above
and here are the gold nuggets of information:
"Heavier weights produce earlier shifts, lighter weights produce later shifts."
"Stiffer springs tend to produce earlier closely stacked shifts, weaker springs tend to raise and spread apart shift points." aha that's what we need, weaker springs so that the shifts are further apart as the hot rod gods intended