No, because the valves will float with 90's with an xp cam. 130's will make more power with an xp cam and stock rockers on these motors, because they can do a better job at keeping the valves under control.
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03-15-2015
No, because the valves will float with 90's with an xp cam. 130's will make more power with an xp cam and stock rockers on these motors, because they can do a better job at keeping the valves under control.
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