[Ziggster]

Good reading. When I had my flathead built, my machinist warned me of the expense involved and the associated rate of return on Hp. Good thing I just wanted a stk build, and no fancy aftermarket heads and intake (couldn't afford it). I totally respect those that have invested their lives into racing flatheads, and the secrets they have learned and earned over decades of hard work. I wouldn't be giving up any secrets either. That is what competive sports is all about across the board. I'm no engine builder/ designer, but as a mechanical engineer with some knowledge, and it would be no secret to anyone, the success of any performance engine is volumetric and combustion efficiency, and getting there with a flathead design is where the secrets lie. I'm not sure if anyone has tried it, but direct fuel injection into the head would probably make a huge difference.