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Thunderheader X or D&D Boarzilla

11842 Views 12 Replies 6 Participants Last post by  Sleepybagger
125hp /131tq 113 motor w/S&S 635 cams. Running S&S Power Duals w/Rinehart 4".

Torque is to the right, like it flatter and sooner.

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I would choose the D&D Boarzilla. Thunderheader never looked right to me and has had quality issues and brackets breaking in the past. Both use a 2in primary where as the S&S Power Duals are sized for a smaller motor. A good 2-1 will put the power down low but a good tuner is also needed to complete the package.
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