I don't think it is totally the cam, but that cam is limiting his combo. The B303 is not a good match to the TFS heads or the Holley.
The dyno should really enlighten the whole situation to see where the air fuel and power curves are. If oil is getting itno the motor still it will kill the octane rating on the fuel. What do the plugs look like and what gap do you run?
Sky- When are you getting that oil pump fixed?
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