[James the III]

I don't believe the ram jet has a cam lobe for a fuel pump as it is based on the vortec truck long block..
But you could get a aftermarket cam with a lobe for it..
I never looked at the ram jet cam I installed in my vortec crate to see if it had the fuel pump lobe.. but with the engine being based off the vortec truck crate and it coming with multiport efi.. there would be no point..