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  1. tom s
    04-26-2020 09:40 AM
    tom s
    I did,I just swapped engines in my bird.I had a 455 with the X pipe and had a bad drone at 2000.Pulled it and put in a H and it went away.Fast forward to now.I took the 455 out,put in a 428 RA V with a much bigger cam and the same H pipe system is now 86 decibels at 2000!I have the 14 in 2 1/2 super turbos.I called my shop friday to talk to him about new mufflers.I almost went back to my 18in Hushpowers but I want something more quiet like maybe what came on HiPo factory RA IV cars.I drive my cars too much to live with that kind of noise level.Tom
  2. Aus78Formula


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  • Last Activity: 03-27-2021 07:18 PM
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