Vik,
check out my link , there you will see where mine is .also in the Gallery ..just a tip if ya go with a firewall mounted Booster ..save yourself a lotta headache down the road an make a plate at least 1/8" for backing ..the factory firewall sheetmetal will NOT stand up to the flexing and pressure you will be putting on it .
and if you are using a booster and pedal from a junk yard car you will most likely have to do some heating an bending to clear the steering column to get the pedal to set where it should .