Block bored .30 over , valve lift int .420 exh .443, cam lift int .280 exh .295, duration int 204 exh 214, center line int 107 exh 117 LSA112 based on 1.5 RR, ill b using 1.6 RR, headers no cat , bbk underdrive pulleys, summit stage 1 sqare bore with adapter, ultimate TBI mods