HPD porting
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ok guys,i known what you mean,i actually contacted someone (in the business)to get some like a custom porting job on my 400 cylinder,i told what gains i would see and he quickly find out what the porting i wanted was about...
til now the resulst are impressive,but i'm thinking it is worth the "official" HPD porting,time will tell...
til now the resulst are impressive,but i'm thinking it is worth the "official" HPD porting,time will tell...
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