firenut Posted September 19, 2016 Share Posted September 19, 2016 Can anyone tell me if this is a problem? Should I braze all but the two "original" holes shut or will it cause NO problems having multiple. Already have to braze the milled surfaces to line up the two manifolds... this is the "top" of exhaust.. TIA. **BTW 1950 Mack 85LS** Quote Link to comment https://www.bigmacktrucks.com/topic/46911-85-ls-exhaust-manifold-problem/ Share on other sites More sharing options...
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