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[vafatboy]

Originally Posted by nw_guy4_fun

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..

The tuner only used the tuning link, no tweak in timing exhaust etc, my bet there is a little more.

http://www.v-twinforum.com/forums/at...1&d=1183758083