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i dont think the threadstarter will gain much from open headers, maybe a tenth or so from the lost weight ....

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My game plan is to make the first time trial with no changes. I will make a change ONLY if my time slows. Seriously, I don't think I will see much of a gain in performance, just noise level. Thanks for all the suggestions, I'll update later as to the results.
A little FYI. The time in my sig was done on a 95* day with full exhaust.