My 64 w/230/3spd/3.73 gets nearly 16mpg consistently, my bro has 2004 Silverado w/4.8/autoOD/3.42 gets 20 hiway on a good day,has black box,EFI, plastic everything, can't even turn the lights off/on manually. C'mon 40 years of technology for 4mpg??? Base price on my 64 was $2025, his stripped(a/c & radio but rubber mat etc, work truck "option") was stickered @$20k, he got it for around $17k. I drive my 64 everyday, I do get passed a lot but who cares. Brian