Thread: Roush 427 & 402 Differences
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Old 03-03-2009, 08:16 AM
madmaxx madmaxx is offline
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My Roush 427sr/tw idles all day at 850 rpm and drives very comfortably at anything above 1400 rpm's. Note there were carburator upgrades as they were developing the 427 so make sure you have the latest version!!! I THINK the latest carb edition has a green dot on it. I think most engines after Jan 08 should be good to go!!
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