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[diverman]

Mild port mods, S&S .570's set at 10.0 cr.
58mm S/E t/body, or S&S Throttle Hog.
Tune it. what valves, guides , seals, springs, do you recommend , with the headwork ? thank you
Smile.
Scott

[GMR-PERFORMANCE]

. With that BR pipe is not going to matter what you do and head porting is a total waste as well. Larger t/b would net you close to nothing as well. Back to back testing has shown that. The best is that we can  test that in house, giving us the direct data with factual information .  It's just crazy to see a pipe that can hold back power as well as it does. The tq curve is decent but in a short area.  Another thing is this break out come with a stock 50 MM FBW unit it is not a cable driven small t/b. Stock 50 MM unit is more than able to make 110 hp ,  Again back to back testing has proven that the larger unit is good for building more HP above 4250/4500 rpm on avg. Tq will go up a bit but a gain of 2-3 is never going to be felt in the seat.