what is the difference in performance between a .50 over wiseco piston and a 1.50 over wiseco piston. it is for a tb250 by the way. i just wanted to know what one is more reliable and is gonna give me the most power. thanks for any input.

 

boring over doesnt give much power... and i think a 1.5 over means millimeters.. which isnt as much as .50
only bore if you need too...