D15 mini me lacking top end power help
 

Hi everyone i have a 99 civic hatch i put a d15 mini me out of a 98 si been a very long road had to run and re pin the interior wiring harness with the help of a local honda dealer ship car runs great other than the fact i lose almost all my torque and acceleration in 4th and 5th gear after 120 you can hear the change in tone puting it to the floor but just only enough to keep at speed if i drop to 3rd i have torque for days but to me it seems like im not getting enough fuel as it dosent smell rich i just dont get it lotts of power from 1st 2nd and 3rd 4th kinda creeps up and 5 deffs no power please help om at a loss here