Hello All, I am in a process of pulling my F20C for a rebuild (scored w/#4). Want to stay NA for at least another year after rebuilt completed then change setup for turbo aiming for 280-300whp(Greddy Kit?). Would like to order either Inlinepro or ERL short-block kit. Not sure which compression ratio to order(11:1, 9.5:1, etc...)? And how much work(s) is needed with the head (valves, springs, retainer, etc...)? Engine has 40K miles, any comments/suggestions are much appreciated...., Scott