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If the valves don’t open wide enough, they will cause a restriction to the air trying to enter or exit the cylinder.

However, opening the valve past a certain point will not increase the flow in or out of the cylinder.

If we close the valve immediately after the piston finishes its downward motion, that incoming airflow abruptly stops.

But, if we leave the intake valve open just a fraction of a second longer, the momentum of that fast moving air/fuel mixture continues to force more of the mixture into the cylinder (scavenging effect) as the piston starts its compression stroke (return to top of cylinder).

We have thousands of BBW hotties all looking to take their kit off in front of the camera to provide a good showing for their viewers.We wanted to know–and verify–what really happens when we install a camshaft at “zero” (straight up), and then simply advance it four degrees.We know that advancing or retarding the camshaft’s timing moves the engine’s torque band on the rpm scale by moving the valve events farther ahead or behind the movement of the piston, but how much, and in what direction?It’s a typical small-block build that is found under a lot of hoods.Since the cam was initially installed at “zero” (the dots were aligned straight up), we figured this would be a great way to test the effects of a simple cam-degreeing.

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