Originally Posted by ktmrider

You know, one thing I totally forgot about was that I bought a "used" ASA timing assembly from eBay ( 2 dyno pulls of use ). I wonder if I used the wrong keyway ( it is keyed for +/- 3 degrees ) and am advancing the timing too much?!? That would explain the top end falloff and excellent low end torque, plus some of the KR at high rpm's. Coulda swore I used the center key but it was 1000P at the time and I was running from the oven to the crank snout after heating it up.
Too bad it will take a total teardown to verify. Maybe an excuse to swap the cam?!? A good excuse at that....