1972 Front Disc Brake Conversion

I used a Pirate jack kit but manual.... and honestly i wish i had kept the stock drums... the discs don't stop as well and it was money wasted.. i wish i had my drums back at this point (trash it all of course) But with power i'm sure it will be fine. The pirate jack parts worked fine.
as 72blu noted upthread you've got something amiss.

the difference between 73+ discs and stock drums is night and day.

the issue of pedal effort can be mitigated with a combination of MC piston size and to an extent caliper pistons size, if you can source the specific 74 dart big piston calipers. failing that, a power set up is always an option.

i'd try massaging what you have currently and see if there's better results.