These arent from Brads stage 6's, but a set of the same vintage....... ootb with Ferrea 2.14/1.81 valves:

Lift--------in/ex
.100---67.4/52.3
.200--126.3/108.5
.300--181.3/137.7
.400--215.0/144.8
.500--235.0/149.1
.550--236.9/149.1
.600--238.8/149.1
.650--240.8/149.1
.700--242.7/149.1

Ootb second gen Victor(the ones with the bowls cast .300 too small, like what Brads were):

Lift-------in/ex
.100---64.2/51.0
.200--126.1/104.1
.300--183.4/143.8
.400--238.8/174.8
.500--281.6/176.0
.550--297.4/176.0
.600--311.8/176.0
.650--302.4/176.0
.700--308.7/176.0

Just some numbers to give you an idea of the starting point for using either of those heads.

And for something else to compare to.....
Ootb Indy SR std port:

Lift--------in/ex
.100---69.0/54.1
.200--132.9/99.2
.300--189.5/135.1
.400--236.2/165.4
.500--264.6/188.9
.550--272.9/196.7
.600--279.7/203.2
.650--284.2/208.1
.700--287.2/212.0

Pro Comp "Victor", std port, valve job and back cut valve, no porting(intake test only):

Lift-----in
.100---71.9
.200--147.6
.300--204.2
.400--255.1
.500--289.1
.550--295.5
.600--304.2
.650--309.9
.700--309.9