i've been poking my AFC a lot recently trying to get all of the digital gauges working properly, and was wondering what people on the board use for certian "in" and "out" numbers for different sensors. oh BTW, what is the Karman option?

Ignore the "Karman" sensor type. That's only used in the 4G63 and other cars. You only need to worry about the "Pressure" type. Most people use 6 in 6 out, and others use 7 in 7 out for the sensor type. Each car is different, so you just have to try both numbers to see which gives you a better idle.

do all of those bov's fit the hrc kits? if so i think i will go with the greddy type s.

The Greddy Type-S bov will fit the HRC i/c piping :) It will clamp right on using the HRC supplied silicone coupler; or you can always have a Greddy bov flange welded on the pipe.

what about the other sensors like "flap" and "hot-wire"? what settings seem to work best?

ONLY use the pressure setting like was said above, all other settings are for jap cars like the silva/skyline etc.. You ONLY use the pressure setting, dont mess with the others