So in my case my march 99 au1 6cyl most likely has the small master cylinder and i have no issues running the big brakes, they almost pull your face off. The bigger master cylinder might give a better pedal feel but in my case its not required
The AU2/3 front brake lines will fit on BA 298 and 322 calipers but using BA lines would be best as it has a longer bent hardline at the caliper end
Rear territory calipers on a live axle can use AU lines no problem as thats what im using
__________________
CURRENT RIDES
BA GT Mk1 #0009 - Narooma Blue
SY Ghia AWD
Black VZ LX8 Adventra
Holden HX 50th Anniversary
AU Saloon Car racecar
1980 GS1000ST - Wes Cooley Rep