Hey i did some recent work and know seem to have some trouble with the motor. At idle it sits at about a grand and the motor chugs like its about to stall. i did a head change, plugs and wires are new along with fuel filter. Motor seemed to run good while driving but at stop its just chugging? Could it be the vac lines or a pcv?
probably, did you put the spark plug wires in correctly, I've done it put one in the wrong place it will run but act like it can't breath so to speak. I know that sounds like a dumb question but every one mixes things up every now and then.