Master Cylinder Power vs. Manual

[Lostsheep]

At some point my car received a power brake master cylinder, (my car has manual brakes).....didn't even realize there was a difference until I was trying to replace the gasket while 1000 miles from home on Power Tour. I had to buy the power one just so I could use the gasket for what was on my car.

Main question- How much of a difference between the two other than fluid capacity? Should I get the non-power one back on there?

Thanks
Chris