Join Date: Sep 2011
Location: Southern Maryland
The heads are really good... but there is a casting ridge in the ports.
All you really want to do is blend the bowls where the casing seams are, do a 3-angle valve job, and polish the backs of the valves. Making the ports bigger will reduce port velocity and actually be detrimental to performance.
Cams like the .495 S&S/Andrews need COMPRESSION. With stock pistons those cams will kill the low end torque, especially with the S&S airbox.
Joe's 104 is making 120 horse with untouched heads.
My 110 makes in excess of 130 horse with the above head massaging on stock heads, stock valve sizes, stock intakes, stock injectors, stock 45mm throttle bodies, and .484" lift cams. It doesn't take much.
You ran 12.05 with 87 horses? You must not weigh much and you must be one hell of a rider too.
2006 Victory Kingpin
Lloydz 116" Stroker/Big Bore, .495 Cams, Torque Tubes Airbox,
RPW Thor Pipe, Lloydz ECU Flash, PC-III, PTS (-2), Rivera
Primo Clutch Spring, 31 Tooth Pulley w/Buell Belt.