I just rplaced my brakes on my 96 hatch with a front and rear gsr disc brakes, and it still brakes slow , my question is what options of brake proportion valve can i use ?

 

even with the wrong valve it should brake great. I would rebleed a couple times .

There are the 30/40 props and the 40/40 props I think

 

Use and Non abs valve from and interga rs (4040) if you have no abs

 

Im with Brambose, instead of spending more money try bleeding the system again, if you exposed the master to air you should bleed that first and then the rest of the system. Remember to bleed the brakes starting with the wheel most furthest from the master then every wheel that falls in line relative to distance after that, i.e. RH rear wheel, LH rear wheel, RH front and finally LH front. If your car is true JDM all of this is reverse.