My brother-in-law has been running 22 psi on a GT32 for over a year, and it is his DD. If you have meth and it is tune right they seem to handle boost well. They go through high-pressure fuel pumps quickly though.
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New Ride -- 2015 Z06 2LZ (stock) -- Journal
Old Ride -- 2012 Camaro 2LT/RS (647 RWHP & 726 RWTQ) -- Build Thread
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