I am about to replace the master cylinder in the 32 high boy I bought last fall. I have two other rods with masters mounted under the floor, both of them have holes in the floor for filling and checking fluid. Cutting a hole in the floor is not an option on this car. From under the car it looks almost impossible to fill the reservoirs. How do you get the fluid in? Pump? Squeeze bulb? Remote Reservoir? It is a Ford type master (72 truck).
How about this? Looks like "fill to spill" mounted on the firewall http://www.streetrodstuff.com/Products/76/
I have a dual chamber Mustang drum-drum master cylinder mounted under my floor on my '32 coupe and I can fill the reservoir easily......no hole in the floor.......enough room from the top of the MC to the floor above to pour fluid in easily.....my MC sits right below the bottom of the K-member......made a bracket that bolts to the K.... CB
The wire bail will almost touch the floor. I like the remote fill idea. Maybee mounted under the flip up seat.