My car went its fastest at 34 degree's N/A. 41 degrees surprises me for a E head. I never said a 150 shot was nothing, just that its not a lot to worry about if you have the motor tuned right N/A . My car fly's on a 150. I have never tried it with timing taken out. Maybe ill try it next time and see what your talking about.. But 13 degrees for a 150 sounds like a lot..
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My Half AN Injun.....
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