Greetings all... New member here from Gainesville, Georgia, and also a new GMC owner....See, wha hat happen was....I was simply going on a short fishing trip in my 2003 Chevy Cavalier that my dear mother gave me due to her inability to drive anymore, drove to the boat ramp here on Lake Lanier, left the keys in the ignition, as I have always done, didn't think anything about it, came back 30 minutes later, and you guessed it...GONE... That happened on Good Friday, and the car hasn't been seen since...About a quarter mile up the street from my house, I see a good looking GMC pick-up for sale in a neighbors front yard. I stop to check it out, and he wants $4000 for it...Claims to have a newly rebuilt engine and transmission, so I take her for a spin...Really clean truck that he says has been garaged for the last 10 years, and he had the engine rebuilt "just to have something to do"..He is the original owner, as he still has all receipts and paperwork from where he bought the truck brand new....She runs fine, so I decide to buy the truck for $3900. Well yesterday, I decided to check the passing gear, and punch the pedal to the floor...I get several back fires, and the engine dies...I call him back, and explain what the symptoms were, and he had no idea....I finally get the distributor lock bolt loose, and tweek the distributor just a tad...WORSE....just a tad the other way, and she seems to purr nicely....Back to the street, and punch her and got a sweet response this time....I will still take her into a friends shop tomorrow to have him check the timing....I think I got a good deal, as you can tell the engine is freshly rebuilt from the condition of the cylinder heads as viewed from the oil filler cap...SPOTLESS... Oh, as far as me, Im an 18 year aircraft maintenance technician for Southwest Airlines here at Atlantas Hartsfield airport...Been a mechanic all of my life, mostly cars and vintage British motorcycles...Had to sell my totally resurrected 1972 Triumph Bonneville in order to buy a vehicle to get back and forth to work...I still own my 2005 Triumph "America", which just celebrated 62,000 miles, and still like brand new....Love the site so far, and look forward to contributing and learning about my new truck...I'll try to get a pic of her...She's a SWEETIE~~~1985 GMC S-15....22,750 on odometer....