Flyintexan:

I flew a focus with the exact setup that you mentioned: OS 1.60 / hatori header / greve pipe / cline regulator with gator mount. Once I learned to put the cline *behind* the needle rather than between needle / carb (as suggested earlier) the engine was a dream. It had rock solid idle and transition.

On Omega 15% it was swinging an APC 17x13 at about 82-8300 static after just a few tanks of gas. It had so much power that ended up running a 17x10 to slow it down.. I'm sure that it would swing that prop in the high 8's or even 9's if I tached it.. Fact is that the tach never came out of the box though because I never had to worry about top end.. My focus was just under 11lb, and that engine would horse it north like a rocket.

I only fly 402, and there was so much excess power that I had trouble managing speed and presentation. Probably comes in handy in the upper classes though. Hope this helps, Chuck