#1 real good torque/ light performance
#2 real ggod torque/ 500 rpm over stock power range, little rough idle w109 centerline
#3 probably best choice. 112centerline gives good idle, around .500 lift keeps valvetrain from wearing too fast. it is really not needed to go bigger for street. for the little gain it really wears out faster. still have a power band 500-700 rpm over stock.
i have ran a cam with 270 advertised duration from clifford. just seemed to be the wrong cam. it was a straight grind and i would guess the .050 duration is closer to 230. head was the same as yours. tom
