I run the same MC and slave cylinder in my car but it is a SBC driving an inverted G50. I found that my MC (master cylinder) was OK but the slave cylinder bore had pitting from moisture in the brake fluid that is used as hydraulic fluid. I had to replace the slave cylinder with a new one and after finally getting the system bled it worked fine. Depending on how it is mounted, your slave cylinder bleeder valve may not be facing up. If it is not pointed straight up, not all the air will be bled when you loosen its bleeder valve.
Regards, Neil Tucson, AZ