how much of a power increase and top end increase would i have with a 435cc big bore kit on a stock z400. I have no other mods.

 

not that much really ,honesty i know of 434's that put out less than mine is and my bore is stock ,compression is 12.6:1, but thats all in my sig. by the time you spend big bucks for the 435 you could of had all the little things that do make it go fast