Which master cylinder? Pushrod length?

[Rileys68Camaro]

I'm having an impossible time getting a master cylinder that works correctly.

So I'm begging for some help.

Is anyone familiar with SSBC disc brake coversion? I have their front disc kit.

But I need a new master, the old one leaked. I was told I could use one from a 70 and up year Camaro.

But I tried that, and they pedel stops halfway to the floor. I mean stops solid and not from hydraulic pressure, master is dry.

So, what do I need to do? Get a different pushrod? Try another master? Which one?



Will a 68-70 Corvette master work? I have rear drums still, but I have the factory proportioning valve.

Is it possible to have the pushrod connected to the pedal wrong? I read, but can't find, that there are two holes in the pedal one for power and one for non.

I don't know what the car orginally came with, power or manual, but it was a 4 drum car.

Please help, I've bought 3 or 4 different masters and can't return them because I added brake fluid before I started testing for pedal movement.