ls1xtremes10

hello all need some advice been around gen3 since 98 when they cam out owned a few but never built one so need some help ive read alot of post some are excellent others are well lets just say everyone has an opinion im looking to build a 383 ls1 i would like to use callies crank and rods pistons need help with like to get around 11.5 to 1 or 11.9 to one the heads are ballistic speeds stage 2 heads any opinion on this ive looked at heads until blue in face lol the cam is ms4 or would maybe go with pat g spec the intake is fast 102 and throttle body long tube 17/8 stainless works headers the trans is an m6 just need some thoughts on this combonation thanks