What Would Happen?

Not sure what size that is but I hear tell that a 1 inch MC works well with the OEM Fox GT booster.
Part number or any specific words I should search for for this specific master cylinder?
I'm trying to get by without having to notch any holes in the fire wall, cutting down studs on a booster, and "massaging" my inner fender.
 
Part number or any specific words I should search for for this specific master cylinder?
I'm trying to get by without having to notch any holes in the fire wall, cutting down studs on a booster, and "massaging" my inner fender.

Let me look around... It was part of a discussion I was having on here a few weeks ago. I'll try and find the thread.
 
No worries... if you decide to go this route, let me know how it works out for you.
Yeah I think I'm just gonna keep my factory booster and just try to run the '93 Cobra MC. And even if the brake pedal feel isn't quite right, I'll just deal with it. You wouldn't believe what kind of brake pedals I've had to deal with on customers vehicles.

Probably 2 or more years ago I converted a '67 F100's front drum brakes to disk brakes. The guy bought everything offline and told me to just put it on and run it. Oh. My. God. The brake pedal was so effing hard! And the kit had a matching MC and booster to go with the disk brakes. What a wonderful "kit" that was.
 
The booster won't matter at all if you get the master with the proper stroke/displacement.

If you really want to fine tune things, you can also relocate the attachment point of the brake rod on your pedal. Move it up and get a softer pedal, down and get a harder pedal. That's how the factory did it back when power brakes were an option, and not the norm.