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I run a Quickfuel 850 on my 588 BBF. Not a radical cam - makes an easy going 680HP and 750 TQ. No crazy jetting either. Actually left some HP on the table to make a SAFE A/F ratio.
I dumped the Mighty Demon 850 a couple of years ago. Keep the MSD box. Make sure you dizzy is correct, or replace it. Make sure up have 1/2" fuel lines back to front and are feeding the beast properly with a top of the line electric fuel pump and pressure regulator.
x10 votes for the Quickfuel.
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