More info I got from the seller: 350 2 barrel original rebuilt in 2003 less then 1500 miles on rebuild but it seems to have issues may need to be gone thru sat for 5 years before I bought it 3 years ago put in new coil plugs and elctronic spark control, new paint, black top,pads and well liner carpet and the front seats have been recovered. Drove fine untill about a month ago not sure whats wrong with it starts fine but knocks sometimes haven't drove since then was going to have it checked out by a mechanic but haven't had the time or money to do so. I put in a new centerlink and rear air shocks to make it ride better have new front shocks but not installed, new trunk pan all rust was repaired before was repainted.I have a folder from the previous to owners with the owners manual and alot of receipts and documentaion on the car. All the ac components are there but that and heat or vents does not work not sure what is wrong with that also the washer pump does not work and the rear bumper either needs to be rechromed or painted. Thanks Jeff