Mine had a 4G63na for about 3 years exactly. It was uber reliable. I felt so comfortable taking it on trips that I once drove it to the Brent area of Algonquin to camp with my sister, then came home and changed the oil. Next morning I packed the girlfriend and kid in the car and drove straight to Mammoth Caves Kentucky. Not one issue at all.
It use to hit around 65mph in the 1/8th and do maybe tens IIRC. All I ever did to it was belt maintenence, and water pump, (all preventative) and the valve seals when it started smoking.
I think I got around 30-32 mpg highway.
I thought it was peppy... then I got my doors blown off in the 1/8th mile by a 4wd hemi Charger with four people in it. Next season I had an EIII 16g

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Putting in the 4G63 June 20, 2005:
Kentucky August 22, 2005:
July 27, 2008 Meeting it's future engine:
