83 camaro with ls1/t56. Trying to mount the master clutch cylinder on the firewall, but with no luck. Where does it go?????? Pictures, input, anything, much appreciated. Thank you.

 

http://www.fbodymotorsports.com/thirdgen5spdconversion
If you go there they have good details on how to mount the master cylinder.
When i did mine i used the two supports that are attached to the pedals to align where the bolts holes went, then traced the gasket and cut out the center hole.