Back in '68 a magazine did an article on three COPO Chevy IIs prepped by Dick Harrell. The stock L78 automatic ran
14.26@101. The prepped 396 with slicks added went
[email protected]. The 427 version prepped went
12.05@115 with Jardine headers and slicks. Our L78 Chevelle put about 3/4 of a car length on a friends car that ran 13.3s. Back in the day, I rode in quite a few L78 cars that were considerably slower. From the factory, with retarded timing and emissions jetting, they were downright slow. So was our 427. Balancing, blueprinting, tuning, and all the other little details can have these engines making considerably more power still but that isn't factory.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now.
