first off i just wanted to say i did search but could not find anything that helped me.

i just got back from a freinds house and they just installed a d16z6 into a 93 dx. the z6 was pulled from a car that was running and driving fine...ran 13.0@106 with a homemaqde turbo set-up just 2 weeks ago. anyways, all they did was pull the d15 out of the dx and drop the turbo z6 in. they did not mess with anything. now the car idles great, at full throttle it runs good...but at mid throttle it missfires and hesitates alot. we swapped o2 sensors, checked all the grounds...we are gonna check the fuel pump tomorrow. also noticed that in fiorst gear the car pulls really hard but in 2nd-4th its is kinda sluggish. it seems like its getting too much fuel and bogging.

as of now the vtec is not hooked up but it should still go throught he power band fine, right?????? any ideas?

cliffs:

idles fine
w.o.t. = good but sometimes in 2nd-4th gear its sluggish
half throttle = missing, sputtering ect

whats the prob?

thanks in advance guys