is my turbo too small Options

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well ive ask this once i think already but is my turbo to small. i have a t-25 and yeah it smaller then a t3 also im boosting 7psi. but i feel no boost on high gear. just first and second. the weired thing is that i cant even pill out on 2nd. WHAT SHOULD I DO!!should i just add abigger turbo.ive been asking around and have sources to get a ct26 but im still thinking that i might have some power hidden in my t-25

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StreetRacing10PSI well the t-25 has alot of power. but what ive heard is that its too small for such a large motor. i recommed you just add a bigger turbo. just cause i know youll get boost addicted. i am. well spunky393 i have a warblo 255 fuel, adjustable fuel reg, supra light green injectors, 2bar map, and should be gettting the fmu and a safc. but i still am not feeling boost in high gears i know the 5s doesn't have the best top end but i still want to feel the car pull to top end. tried t put in the t3 turbo last night but it woudn't fit. thats sucked. so put the old t-25 back. jump the boost up to 8psi feels a little stronger but no feeling in 4th or 5th