hi mitch....i have this viper cass c body rotor kit and the 10.7 cass rear set up..i am running 15/16 cass master and stock 4 wheel drum prop vavle...cass said with this set up it is almost perfect bias as i am not using any adjustable prop valves..seems to be right on the money...pedel is not to hard and i have fallen in love with this set up...note c body rotors that are 1.25 are heavy...very heavy but will aid as a nice heat sink if your gonna use them...

70 charger ,all aluminum 528 hemi 727 cope rmvb,680hp 670 tq,full sequential holley hp efi,full hotchkis tvs,qa1 k and lowers,borgeson steering box cass viper 11.75 with cass s-trac dana 3.54