[yossarian19]

OH! The brake switch - I am using a CPP firewall kit from Ebay and it has a mechanical brake switch mount that I am now using. With the LS motor don't forget you need to use a "normally closed" relay so that it gives a signal to the PCM when you are just driving along and cuts that signal (and powers the brake lights) when you hit the brakes.

I can't find the CPP firewall kit that I used on Ebay right now but it may still be there. The POL kit I know nothing about except that it looks similar. The CPP kit worked, was annoying to install but not overly difficult. The big flaw to me was the pedal arm is clocked high on the pivot shaft, so the pedal by default came out really high with the hydroboost shaft - vacuum boosters might have shorter rods? Sawzall & a threading die fixed it though. Shorter booster shaft = lower pedal.