As usual you are misinformed.Excuss me fancy pants lol. Yup shorter dogbones are for stock manifolds...any set of headers wont allow short DB. If all else fails with the Vinnie Spacers you dont have to run the full set. You can run a half set if your having clearance issues.
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Shortened Dogbones are garbage and DO NOT DO THE JOB CORRECTLY!
Buy the Half set of Vinnie's Spacers, and DO IT RIGHT! Full set if you get on Intrax, and yes, you can fit a full set of spacers with 3" DP and headers, I did it.
http://www.grandprixforums.net/lowering-spring-vibration-motor-mount-spacers-1107.html
A nice addition to this thread.cut out underhood bracing and gain clearance.
grind top of blower a little.
ensure billet rails, not modded rails.
More than a few ways to get hood clearance.