Need help tuning Quickfuel carb

dano said

Does your intake have the holes drilled at each end to accept the pins that are pressed into the front and rear china wall of the block or did you remove them?

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This could be a problem. But most know that the wall separating the ports need to line up with the center of the Valve cover bolt. Scribing a line in the surface of the intake directly above the separator is a good way to make sure your intake is port matched. This should be done on all intake installs.

If using the pins tapping down on the intake after alignment is the way to mark where to drill them. This makes the intake specific to that motor. With no pins you can slide the intake front and back to get them closer before torquing if the alignment is off.

This would be the only other thing that would connect #6 and #8 together for his problem. A head gasket would show compression loss. Good call.