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Thread: RC8 & RB-s7 ?
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Old 07-13-2008, 06:31 PM
  #9  
largeorangefont
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Originally Posted by miket
largeorange, I running rb 063 pipe and w/192 header. I think that header number is right. The pipe came with the motor a combo kit.
Sounds like you have the RB pipe, so no worries about quality. That header is the 92mm one. It is considered "short" but that is the one you want to run. Get those 1.1 springs on and it will be better. Also try fattening up the bottom. What plug are you running? if you are running the RB 6 get that out of there and try a MC-8 (possibly a MC-9 if you are running 30% without an extra head shim). That will help with the bottom as well. I put a 6 back in my engine once, and noticed the difference right away.
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