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We go far beyond covering just the “hardware” used by this fast-paced community, because there’s much more to engine technology than new parts. We go far beyond covering just the “hardware” used by this fast-paced community because there’s much more to engine technology than new parts. EngineLabs will explore the tactics, rationale, and strategy that guide the creative minds who are obsessed with
06/09/2026
Did you know that most camshafts intended for the street are machined with built-in advance?
There’s an easy way to determine this by studying the cam card. If the intake lobe centerline — expressed in degrees After-Top-Dead-Center (ATDC) — is the same as the lobe separation angle, then the cam is not advanced.
Looking at a COMP small-block street cam (P/N: 12-468-8; cam card), it has an intake centerline of 109 degrees ATDC, but the lobe-separation angle is 113 degrees. This means this cam is machined with 4 degrees of advance already built-in. This also means the engine builder should install and degree this cam “straight up” — with no advance — because the intake lobe has already been advanced. Adding more advance would only hurt power.
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