I originally had a gen2 dobec with hmf full ex, k&n no lid. Seemed to run good. A few months ago I installed a hc2 cam,11/1piston +2 bore. At that time I also installed a LC1 air/fuel guage. I could not ever get the dobeck toadjust properly. ran way lean in some places and way rich at other times. I bought a PCV from TQS and after playing with the map it is running almost perfect, a little rich at full throttle 12-12.5, but perfect at cruising speed 13.5-14.0.