BOTTOM LINE...I believe Patrick is trying to sweetly whisper in our ears " hey dummies, you think you know more than the H-D Factory??? " Patrick, you are Korrect. All the playing around is just that, just fun and some foolish.. FACTS: Harley Davidson built the K with perfect 45" cams to match the heads, valves AND ports. AND the KH, great 56" match...on Cams, Ports, Valves. The KK and KHK. Beautiful state of art Side Valve Hot Rodding Science setting industry standards high. Thing is, out of the box these are proven systems ready to perform as is. Truthfully, a KH would whip a KHK easily in a drag race with novice racers because it pulls much harder, much sooner than the KHK. Same note. K 45s can be bumped up in cam area, say KH profile, but they run sadly on low end, catching up and performing later. Harley Davidson knew exactly what they were doing with their 1929 blue print by 1952...trust me. So all this Mutt Motor stuff is is for fun only. Rot de Hey, right? Peace. SideValves. Rumpity Rump..
Erik