which brake proportioning valves?

[spp_dev]

hi guys,

soon i will fit my wilwood 4pot calipers (256x24) on my nova,

on the rear there will stay the original brakes,

i will use a double-chamber brake servo from a vectra b

with the 25,4mm master cylinder...

which brake proportioning valves would you recomend?

also the 3/20...or something like 3/35 or 3/40...?

thanks for your help!

[GRUNT 16V]

i used 3/20 for a rear disc set up so if your sticking to drums then use 3/35 or 3/40
cheers