OK i will start by saying i just had my heads cut a reshaped now the specs the technician told me is im at 14:1 on the compression chart now set up for 0-2000 ft at about 0-20 degrees where should i start the jets at i know im going to have to fatten them up considerably but how much right now im at 330 mains and lowerd the needles down a notch so they are in the middle and i am running 112 octane,so,i think im going to go to 350 mains and deal with the needle as i go,this is on a 99 zr 700