I was wondering what ecu i should use, what program? and how to go about with finding an ecu for my g23 build. I have an auto tranny. i am adding k20 pistons (11:7.1 compression) 390cc low independence peak and hold injectors. port and polished head, new valves springs retainers. stock intake manifold. and everything else is stock. just wondering what ecu i should use and what specs and basemap should be used? can anyone help me with this build?