My engine is 5efhe now with all stock internals plus 4efte inlet manifold,throttle body,fuel rails,injectors. i am doing 5efhte project high compression turbo.aiming for 7psi boost.the turbo is tdo4.and all other internals are stock.using the 5efhe stock pistons. the injectors are 295cc as from 4efte i am doing my own base map. as i have known 14.4psi is atmospheric pressure below that is vacuum and above that is boost. i want to know more about the map tables.there is Ignition map for retarding the ignition timing fuel map, map for adding or removing fuel with the help of on bo