wierd sputtering? i just ported my blower?

[GTPJOE90]

Anyways spent most of the day porting my blower with a drill bit a dremel and alot of bits... anyways i opened up the TRIANGLE annyways after i put it all together she fires right up now at about 2 notchs on my boost display via drivers information center the car like sputters it sounds like when boosting??? then i noticed a spring..... does this below belong to the eaton m90??? please no jokes i really dont want to take this apart again it might not be from this but im not sure please let me know somebody and no its not the pcv spring.





thanks