brake sensitivity help

I have a 1970 plymouth duster. I put a new master brake cylinder in and i had recently put new pads on all 4 and i had bleed them twice. It does not have a power boost brake setup. When i brake is is extremely hard to brake. I also have to use both my feet to hold the peddle down to stop it from going. i had it for about 2 months before i drove it for the first time because i had to fix other stuff. Is that normal or should i have it checked out?

thanks.