Hi Brian.
This is simply amazing to read... I am a boy on 17 years old, i have dream to become engine builder, i build cylinderheads for old opel cih, the last one i build went out with just above 200 hp, with a sweet camshaft, and small valves, but it was rpming to 9.200 rpm, on 8 valve, i can link up a video from youtube if interested, and send you some pictures if you would like to see my work, now i am holding on for a new cylinderhead with the right valves, and a more aggresive camshaft. For just around 2 weeks ago, the engine i build cylinderhead to was on the dyno against a guy who had build opel cih for 30 years, my engine went out with 208 hp at 8600 rpm and 201 at 9200 rpm, his went out with just around 166 at 6000, and 142 at 7000 rpm!
best regards.
chris