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Old 12-13-2012, 04:39 PM
632Mantis 632Mantis is offline
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I have an 850 Mighty Demon on my big block engine. I bought it back in 2005 I think.

Things I had to do to it:

Send the metering blocks back for exchange because the idle screw holes were drilled improperly. ( they were offset, they didn't line-up which caused the idle adjuster needles to break when you screwed them all the way in )
Change the power valve.
Change the jetting. ( It was ridiculously pig-rich. Came with 86pri and 94sec jets. )
Add notched float and jet extenders on the secondary side.

After all that.... it works great now!

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