Disc Brake Conversion Failing

That doesn't look like a disc/drum master cylinder. Are the front and rear reservoirs the same size? If so, it's drum/drum.
thats exactly what I was thinking, I called up the so called manufacturer stated that the product number was indeed for a disc/drum application. what's more interesting is that the original MC actually has a significantly smaller bowl up front and it's a factory drum/drum application. the old style with bolt down the middle of the wing on the cover.