hey guys, so i bought a 95 b4 passat back in december and it was running fine, i have finally got time to work on it and now its not running so well. i replaced all of the plugs with ngk's, threw new oil and a filter in, a zmax in the engine and fuel system. ive noticed a small hole in the exhaust which i can fix no probems. but its spitting out quite a big amount of fumes, not the type of fume it would be spitting if it were burning oil though. sometimes when it turns over it picks up like its gonna start thn dies? ive been told it could possibly be a timing problem, and im gonna go over the