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Discussion Starter · #1 ·
Recently moved from UK to US. The majority of the mods discussed on this board are similar to what we do over in UK, however, one major mod that isn't listed is porting and flowing of the cylinder head. Most of the cars that I have moded in the UK go through standard Intake, exhaust and chip rotine, note. NO headers, ilegal in UK. Then we have a enine shop gas flow and re port the head. The mod in the UK is circa $800, is there anyone that has had this done over here and if so what was the cost? Typical power gains for gas flowwing and porting are around 15hp for a car like the cougar.
 
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