i had recently installed a first gen b16a into my brothers civic hatch(eg)...when going at high rpm the car blows out a lot of black smoke..waht could be the problem...we had it in his 95 civic before and had no problem...

 

define a lot

a little is normal.

 

where it looks like it's poluting the air??? hehheh...hm...like i can barely see the car in the back of me at like 50 feet away..