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Old 11-23-2021, 09:32 PM   #22
Rabrooks
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Join Date: Oct 2019
Drives: 2020 Subaru BRZ
Location: Washington NC
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The porting is complete. No results to discuss yet. I took a hard look a t larger valves. I found several professioal porters that dont recommend larger valves. Just take the throat to 90 to 92 percent of the vslve size and back cut the intake valve for improved flow. Also opened the bowl to 97 percent of valve size. So thats where i went. The build should be ready for track by late March. Oh yeah im sdding beehive springs tested to 9k rpm. I had Crower springs before and they took the rpm to 8200. Peak power at 7700
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