i dont build them and really have limited experience with them. but you want to adequately size the waste gates so you dont get boost creep. single turbo? why run 2 wastegates? seems a Waste haha to me. one single the right distance and size from the turbo and you should be good? i could be wrong its been a LONG!!! time sence ive looked into this shit.
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1998 Firebird:buncha parts thats used to make it go fast..... not so much anymore. 
BAAAAAA!!!!!!
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