LS1 Chevelle Preview

Here’s a preview of our 1970 Chevelle undergoing a few “quality tests.” The rear suspension was upgraded with a posi-track unit and 3.55 gears. The LS1 was re-tuned with┬álong-tube headers, EGR deletion and a cold air intake system. The benefit to these upgrades is that you get a substantial horsepower boost without compromising on idle smoothness or gas mileage. What is the estimated horsepower of┬áthe Chevelle? 450 hp. Gas Mileage? 24 MPG.

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