Originally Posted by
poindexter
I'm running a hydroboost for the brakes which is why I don't need vac.
My moment of truth will come with the 6L90, which was never fitted behind the 6.5.
It beat Marks 4WD as they couldn't get the torque convertor to play nice, and has since dropped their conversion for 79 series.
However, when I talked to Marks, they were such pricks about divulging info about the conversion, I withheld what I knew from GM Powertrain.
Mind you Quadstar in the USA were no better, so a big FY to them all if I get this to work.