R32 Running Problems

[komatsu sh*t!!!!CAT yeah!!]

gday

im new 2 this place so bear with me.i recently bout a R32 skyline.it was runnin sweet until recently when i backed off the throttle after high rpm and the bastard off a thing stalled on me through a gear change.haha.so i started it back up and got it home with the problem occuring 3 or 4 more times.the next day i tried starting it again and when i revved it up at nuetral and backed off it would slowly idle down and stall.when i did get it on2 the road it had minimal power and alot of black smoke pourin out the ass end.now its even having trouble idling and has a slight flat spot in it and an occasional miss,every time i try and move it,it'll just stall.

has anyone got any ideas about what the problem could be?any suggestions would be helpful thanx.

[adam-__-]

Most probably a vacuum leak. Check over your intercooler piping and hose clamps, make sure they're all still tight.