its really hard to tell what the cause of it might be. You could be hitting a lean spot when the secondaries open. Any chance you could get a air/fuel prinout from the dyno?
Jim Hahn
1996 T-Red Contour SE Reborn 4/6/04
3.0L swap and Arizona Dyno Chip Turbo Kit
364 whp, 410 wtq @ 4,700 rpm
