so, heres the dealssss. i have a couple problems i;d like to discuss.

1st is a misfire at idle that i've had since december. its a lean misfire at idle. the codes i have are ONLY 2-6 cylinders random multiple misfires, random multiple misfire, and 17884 which is evap LDP insufficient vacuum. I believe the misfires and evap are being caused by a vacuum leak in the lines in the evap side of the vacuum system. if you can point me to the lines i should be looking at please help me out. BTW, the misfires startted when the car was bone stock

my second major problem is a loud ticking sound from under the car. the ticking is ONLY at WOT in 2nd gear. i will accelerate to about 3,000 rpms and then floor it and i hear a pretty loud constant fast ticking from under the car. Drive train? is this normal with 350+ horses? i've got GIAC X software piggies and darintake. please help me out!!!