im about to start a major ls1 project, and here is what i was thinking. 4.125" bore with 4" stroke for 427ci. 90mm TB with fast 90mm IM. big cam, not sure which one yet, and im also not sure about what heads. i would like to try and run around an 8:1 compression so i can put a blower on it, and try to get 12lbs of boost. is this possible? if so, what cam/heads/blower should i use, and how much rwhp should i expect with a nice tune?