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[nvsteve]

Originally Posted by hdmarsh77

Hmmm, interesting. I was planning on removing it from mine this winter but you got me thinkin. I wonder if anyone has ever done any testing on this.

Here's a b4 and after comparison done by Latus Motors and this is on a modified motor. Doesn't look worth the effort to me as the tq is less until about 3700, then you don't gain much. HP gain is about 5 but so what.
I think Doc may be right.

http://www.latus-harley-davidson.com...mid=2070#M2070