Its a gsr block with a itr head.. at around 5k in 5th it has a flat spot. It just 'dies' and catches at about 4500rpm again.. and its kinda jerky between there.

Its the program im running. Its a JDM GSR program i got from http://www.pgmfi.org Its stock with secondaries disabled.. The fuel/timing maps dip right where i have the flat spot (im thinking its something in the maps to do with secondaries)

Anyone have any idea's? Its a chipped p28. My old program ran fine.. but i need something more fuel efficent.