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upgrade

  1. Vintage Mustang Forum
    Looking for suggestions on upgrades please. (and apologies - i know this question will have been asked several times in similar fashion) I have a fairly stock 289, which is still getting hot on the passenger side. I've got the citric acid flush left to try, but pretty sure i've narrowed it down...
  2. Mod and Custom Forum
    Hi guys, I need advice on determining what the spark plug gap should be on my car. I've been reading around to look for clues, but have seen mixed answers from .032 - .035 and .040 - .050 So I'm a bit confused on what I should set the gap for my spark plugs to. I know it's not a one size fits...
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