I have 94 RS Acura Integra and I did a swap with a b16 motor and used existing ls tranny, dc headers from the ls motor and a crane cam. The problem I am having right now is when I drive under 3000 rpm it stutters and feels like it bogs and also guess its missfiring.I switched out the sparkplugs and was trying to trouble shoot and see if that was the problem. I have to rev high to make sure I move without bogging So I was wondering if any one ran into this problem.