Loyal HRM readers will no doubt remember our "Ultimate Chevy LS Cylinder Head Test" in the Dec. '10 issue in which we tested 11 different LS1/LS6 cathedral-port-style heads. In this issue we're doing ...
The ante has just been raised. What we have here is a junkyard 6.0L engine with stock production L92 heads, a not-so-big hydraulic roller cam, and an 850-cfm carburetor that makes an astonishing 1.5 ...
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