IMCA Hobby Stock exhaust manifolds




















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  1. #1
    Join Date
    Jan 2012
    Posts
    2

    Question IMCA Hobby Stock exhaust manifolds

    With the new rules for 2012 what are the best exhaust manifolds for the Chevy 350?

  2. #2
    Join Date
    Dec 2009
    Location
    Cochran, GA
    Posts
    174

    Default

    Ram horns with the 3 inch collector, very hard to find and only came on the corvette i believe, then the ram horns with the 2.5 inch collector

    allot of the cars must have the frame modifed to allow these to fit, metric and big chevelle that i know of.

  3. #3
    Join Date
    Jan 2012
    Posts
    2

    Post

    Aside from the pipe size what manifolds would you use?
    We have been using the ones that come on late 70's, early 80's pickups.
    What about the LT1 manifolds such as 93,94 Z28's and Trans Am's used?

  4. #4
    Join Date
    May 2007
    Posts
    1,125

    Default

    jeff is right lt1's are no better than other manifolds. off topic..exhaust does make a difference at least if you throw headers on just for fun. my buddy did that on the dyno to his hobby motor and picked up 25hp.

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