My next plan for the dragster is to remove the efi and block off the carburetor flange so I can pressure test the top end. I'll close all of the valves and add a couple psi to check the intake gaskets on the newer cylinder heads. It has been having all of the same symptoms as when it had sucked the intake gaskets once before with the old heads.
I switched to metal core gaskets with good results but my engine guy did this assembly. Frankly I don't trust the new CFE cylinder heads to be machined properly, the intake bolt holes had to be elongated on a motor with stock deck height, standard intake manifold and supposedly standard height and angle heads.