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Thread: port size
          
   
   

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  1. #1
    vortec king is offline CHR Member Visit my Photo Gallery
    Join Date
    Nov 2006
    Location
    Mankato
    Car Year, Make, Model: 90' trans am
    Posts
    35

    6500rpm absolute max

  2. #2
    erik erikson's Avatar
    erik erikson is offline CHR Member Visit my Photo Gallery
    Join Date
    Aug 2004
    Location
    clive
    Car Year, Make, Model: BLOWN 540 57 CHEVY
    Posts
    2,878

    Quote Originally Posted by vortec king
    6500rpm absolute max
    I would run the 180's.
    Do a bowl blend,gasket match and call it good.

  3. #3
    drm184's Avatar
    drm184 is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2005
    Location
    Lake Worth
    Car Year, Make, Model: 1978 Mercedes 450SL Street Rod
    Posts
    9

    Head Choise

     



    I built a 383 and bought the 180cc heads. I run about 80% of the time on the street also. For the street I also used a 650cfm carb and the low end punch is great. With your 355, running the 200cc heads on the street is a little overkill. Your engine will run better and youll have better throttle response with the 180`s.

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