Ok so after a week or so of thinking and research, I have come to a decision. I am going for a l20b turbo EFI. I have been researching a bunch but haven't found any somewhat step-by-step builds or guides. Even using the search function. :thumbup: I have started reading How to modify your Nissan and Datsun OHC engine aswell. If anyone has any experience with turboing a l20b, knows any good links/resources, or guides I would greatly appreciate your help and input!