manual brake mastercyl.with 94 up disc brakes/will it work?

i have a manual brake master cylinder from a 84 coupe that i want to run on my 89 coupe.this car will be used primarily for racing but it is street drive and not a trailer queen so the added weightloss is the issue.i have converted to a 94 gt rear with the disc brakes and also 94 gt front rotors. will this work or not? can this be a cheap version of aerospace components drag disc brake setup?:nice: