Boost gauge question....

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How much pressure will the black pump make?

I would call vortec and tell them the serial # on the blower, they should have a record of what pulley combo it was sold with and what boost it should put out. Also ask them about the fuel system, I am not that familiar with the vortec box. I assume it works the same a the procharger hats I used to run but I don't want to assume anything on your engine and give you the wrong advice.

I hope I have been helpful. I have had 6 centrifugal blower setups and learned the hardway.