As long as it didn't leak it would make more power...everywhere
top, bottom, middle.
Take the head off and look at how close the edge of the piston comes to sticking OUT of the cylinder
Then look at the head and see what the angle of the combustion chamber looks like at the edge.
You are trying to figure out if the piston woud hit the head (it probably won't)
But you should check it out first.
Then try it.
Run it for a while (15 min) and take it apart and see if you can see evidence of leakage (black soot).
If you have leakage you better put the gasket back in.
If not...check it again after another hour.
If no leak........... great !!
And make sure you tell us how it worked.