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Hey guys i need some help trouble shooting problem with over boosting im running what is suppost to be a 331, but knowing my luck i probably got hosed. it is definatly a stock block not sure about compression . Edelbrock performer intake 75mm throttle body on top of edelbrock performer 1.90 . 1.6 rockers e303.( I believe the turbo kit came from treadstone) turbonetics ballbearing with air to air cooler with evolution series wastegate. it has a 5 pd spring in it and it still makes 11 pds. tried putting a mech. controller on it made no difference. is the answer to step up to a 44mm. New to the forced induction game any tips or advice would be great
 

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There are several factors for sizing a wastegate, but in general the lower the boost you want to run, the larger the wastegate you need. It certainly won't hurt to go big on the wastegate. What size turbo is it?
 
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