I'd keep the wastegate if possible, and do whatever needs to be done to control boost properly, use a manual boost controller, even use a different actuator/change the spring if you really have to.
There seem to be a lot of people on this forum who run lots of boost and probably think that more boost = more power, when really the turbo is way out of it's efficiency range and just blowing out hot air.
There seem to be a lot of people on this forum who run lots of boost and probably think that more boost = more power, when really the turbo is way out of it's efficiency range and just blowing out hot air.