Which Exhaust Manifold???

AdamR said

May as well use the hi-flow if you have it. &4 would use a center dump on the passenger side so it will look correct also.

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agreed and remember you DONT have to get the real expensive "hp" ones from 69 or 70 or when ever they do very LITTLE over the WAY CHEAPER 74+ 360 manifolds..about 1-3 HP is all...