help with comp ratio pistons and new rods...
 

hi guys im gunna be replacing my pistons over the next few days as my last ones broke...yeah they actualli cracked in half so anyway just wanted to know what comp ratio i should be looking for and whats the difference am running a vafc hack also 450cc injectors on a stock internals but thats for now ...?

1:comp ratio???
2:will i get away to ot change the rods.....