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Old 08-15-2012, 06:57 PM   #745
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Member#: 142405
Join Date: Mar 2007
Chapter/Region: Tri-State
#716 Group5 S10


I've been researching head porting lately as on option for the rallycar, and from what I've read, gasket matching doesn't always produce gains, and sometimes actually hurts. This is mostly because the gasket isn't necessarily the "master template" for proper airflow, and most of the time the real gains are inside the runners themselves. I've seen bench flow results from various attempts of gasket and port matching on Jeep heads, and I'd definitely agree with the notion that gasket matching isn't worth it. However, I haven't researched Subaru heads as much.
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