Re: 1970 LS-7 Chevelle ??
I bought an LS-7 long block from Shepard Chevrolet (Lake Bluff, IL) in the early '80's. Was a 12.5 to 1 motor w/cast iron OC heads. ZL-1 cam was not a fan of mufflers, as I recall. Dropped the compression a couple of points, opened the exhaust a little and the motor proved strong (revved like a small block), reliable and a bit more streetable than I expected. Fun.
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