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I have a set of D&D twins for my 2005 efi that I put on ran it for about an hour then took them back off. I feel that I am going to need a Dyno to get them close. Maybe the D&D's are finicky but I am for sure nervous about getting things right. My sled with them on seems to idle around 2500 for a while then finally drop down to normal. Will test again if we ever get snow.
 

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Discussion Starter · #4 ·
im just having awee bit of problem around 7000rpm at 2/3 to 3/4 throttle. they seem to flooding or detonating because my egt's drop off for a second and then i give it a burp and they straighten out right away.
 

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Discussion Starter · #9 ·
liftedandgifted, i havent tried the sled yet because i was at work for 4 days and now im sick. im going for a ride today but i wont be testing. there is 2' of snow here and about 16" of ice on the lakes. tuesday im going to try afew things with the zr.
 
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