I have a model A and not much space to put under floor clutch and brake system, the body is 5 inch channeled in front and the slave is right where the brake pedal would be. I've search through the hamb to found good info on the firewall mount Ansen style assembly but nothing tells me if the dual chamber (60s chevy) master cylinder is good to use with a disc/drum combo? I've heard you have to change something in one of the chamber to make it work properly with a clutch and also, is there a certain type of slave cylinder to use with this master cylinder, the one I have right now is from a 80s blazer and it bolts right in the bell housing flange... Sorry this whole thing doesn't sound traditionnal at all but most of it is well hidden! Thanks for your help guys. Here's some pic of the setup I plan to use and my sedan.