Superchargers will stomp a stroker in any situation. If you dont want to mess with FI just do bolt on's and save ur money. Because a full catless bolt-on car will make just as much or 15-20whp less then a stroker car and cost far less so whats the point?
As for the G-power they've made a few mistakes but they took care of them and fixed our cars. And if you get it installed by Autotalent they will warranty it just as good as Dinan or anyone else.