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help with my 4.8 with cam and long tube headers.
I'm brand new to tuning and have 0 knowledge of anything to be honest. Over the last year I took a shot at attempting my first build and decided to take my 2002 silverado 1500 and do a bit of work to it which includes:
1 7/8" to 3" Long tube headers
Valve Springs
Summit 8706 Cam (275int /280exh)
340lph Fuel Pump
and a bit of supporting stuff (bigger aluminum radiator, electric fans, new fuel lines, brakes, brake lines, remanufactured 4l60e etc etc)
It fires up and sounds pretty great at idle but anytime I go to give it gas it dies out right after, so I copied a tune I found on youtube and now it dies occasionally when I go from starting it to putting it into reverse or drive, or if I give it any gas in gear, but if it's in Park I can rev it to red line and it's fine... I'm not really sure what to do I just want to get it running decently to be able to take it to work and such until I can find a good tuner near me (Bergen County, NJ) to set up some dyno time and get things dialed in.
I've included the current tune file in it. As well as a log for trying to get it up and down the driveway but like I said, it kept dying on me. I posted a little while ago but had a pretty bad vacuum leak but have fixed it since. I was hoping that would solve the issue but it still hasn't.. Any and all help is greatly appreciated.Attachment 109943Attachment 109944