JL8 master cylinder

[KurtS]

Actually, it was always US. Then when I asked the question I changed it to ??. I changed it back to US.

[franzasport]

Hello, I need some help please ..I am from France ...
I have a 69 camaro very special..its a survivor  she stop here life in 1973 and all the parts from now are still the same cause she was stopped in good condition ..unless :radiator missing , exhaust rusted ,and master cylinder out and tyres of course .
see my website tuerlinxcamarol89 or franzasport.com on this car.
since I find it she do only 400 miles at this time for some raisons..
20 years ago I ll made a MASTER BIG mistake  I replace the original master cylinder by a standard 1.1/8 camaro disk brake the car have j56 calipers whith big 4 pots rear
I have a problemo its necessary to put to much pressure on the pedal to stop it and very very dificult to   block the wheels..like no depression in booster so my question is: the new j56 gm repro master cylinder can help me or not cause I have the same bore?
any sugestion welcome  to help to stop that beast...

[Charley]

http://tuerlinxcamarol89.free.fr/html/photos/photos_en.html

[dannystarr]

I believe there are some JL8 systems that included the #3908326 frame mounted hold back valve. I know of 3. One may have been modified, but the other two are almost for certain original. Danny