454 MPG TEST | 90 Mile Roadtrip With Fitech EFI & A 4L80e Transmission In My Squarebody Chevy Truck

Описание: Talking about mileage and a 454 big block chevy normally are matched with empty wallets and grimaces at the gas pump. But what if, with a little work, we can make it actually a realistic powerplant option again in 2026 for your next truck? We take a 90 mile roundtrip in my 1981 Crew Cab Dually Chevy powered by a 454 big block chevy with a 4l80e behind it and Fitech EFI equipped to find out just how good it gets over what it used to get with a th400 and carburetor.

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