shortstop

Hi all, i have a 1994 sub impreza turbo,i have just recently changed the engine and fitted all mods from my old one.
now the problem is this, i knew i needed new plugs so went and bout them,no probs, then when tryin to start car she was running lumpy. so i thought the coil packs on my old engine would be best fitted. so fitted all this. and car ran a hell of a lot better. then this morning it would't start, she started and then died, but sounded very lumpy like its not sparking on all cylinders.

any one know wat tjis could be??

ReggieMY99

what plugs did you put in? might be the wrongly gapped