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  1. VitaminCRR

    383 exhaust size

    I have a 69 Roadrunner with a stock 383. What is the actual size of the exhaust down pipes? I have searched but can't find a number. My mufflers are blown out and leaking so I'm planning on going to 2 1/2" front to back this summer.
  3. VitaminCRR

    Missing nut and manifold leak

    More issues with my semi-newly acquired 69 Roadrunner, 383 auto. I recently started hearing a ticking coming from drivers side rear exhaust manifold when cold. Looked around and noticed a nut missing from the stud on rear exhaust manifold port. It looks like the stud has been exposed for some...
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