December 1st, 2014, 06:57 PM
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Join Date: Nov 2014
Location: il
Posts: 4
Likes : 0
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High idle
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A pieced together motor in a 91' Ford Bronco, has A set of GT 40 heads off of a '96, 5.0 Ford Explorer, has a '96 5.8 EFI motor. It idles high at around 1500 RPMs, and when you give it gas, the RPMs go up but it takes a long time for them to fall back to 1500 after releasing the throttle. I recently put the GT 40 heads, new gaskets, and did an at-home port and polish on the heads. I can't figure out why it would be idling so high, because it didn't when I started this project. Any help is appreciated.
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