thanks for all the answers. 7172 duster your engine seems strong the power looks to raise fast on the top end must be a real kick. i have ordered a comp cams rx302s-r6 with valve lift 654/655 and 269/276 0,50 duration 106 lobe center but i have 1,6 rockers so the lift is going to be 697/698 i have also sold my old headers and ordered 1 7/8 headers and i am going raise the compression to around 12.1 i hope the combination going to work