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Boost ,Pullies , Flow.
So going to be adding headers,cam,and probably porting the heads, on the fence about dropping compression ( will be running Ms109 + Meth)
Right now stock with just cat deletes about 12 lbs
Trying to figure how much boost will be lost with the improved flow so I know how far to pulley down to get it back. Do you lose a lb with headers a lb with cam a lb with ported heads , is there any general rule or formula how much boost you lose with each mod.
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