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I would not even compare R&R heads with Big Boyz. Big boyz heads porting is what it is a very good value and perfect for a 90hp tw37 9.5/1 95" build.
R&R heads will do everything the BBz heads do and a lot more so compression should be higher and cam timing raised up accordingly to take advantage of the increased flow and velocity. The result more torque under the curve and a lot more top end HP. $1400 VS $400 by the time you get the BBz heads CCd. No put down on the BBz stuff just being realistic and showing what I have observed and experienced.
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_dec5_08.gif "360 Brake Company")
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