1992 Camaro Z28 A4.
I'm converting the old drums on the stock 10 bolt to disks. From what I've read the master cylinder doesn't need to be changed out but I will need a new pro. valve. What valve you you recommend? Links, costs, etc. I think I'd prefer an adjustable version but not sure what I'm looking for. Thanks.

 

You don't need the whole valve. Just do the spring upgrade to your stock valve. Do a search for it on here or google.

 

Ssbc and summit racing both make a adjustable prop valve. Or you can find the thread here that uses a granger 1NCR5 spring to replace the stock spring in the prop valve.

 

https://m.grainger.com/mobile/produc...searchBar=true

 

Some cars are just fine with the stock drum prop valve.. I've done a few and left the drum valve and they are just fine.

 

+1
I hooked up a 4th gen rear with disk brakes and didn't change anything else, in my particular case it was not needed to change the prop valve.
Stops better than anything else I've owned over the years.

 

I appreciate the advise guys. This is why I love this board!