Been a bottle fed truck for numerious years but going a new direction. My motor is a hair over 11:1 compression. i know for FI you want considerably lower. how low do i need to be? The motor is already forged and i really dont feel like sending back to cali to be redone. Im running LS3 heads on it right now with 65cc chambers. I was thinking my only option is 317 heads. I just hate to give op the flow of the better heads. Will the long run gain be better and worth it?