Quote:
Originally Posted by 70SS454
... Was wondering if it is hard on that big block to run for periods of time at that higher constant rpm..
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That's how they were run back when they were built. We'd get on I-75 and do 80 mph for hours going up north. Yes 2,800 is a little more wear than 1,800 but it isn't going to hurt it. Gas mileage is the worst part of it.