hey guys, i have replaced the pickup . oil pump, and filter. and of course oil. still no pressure. have tested the gauge and it works perfectly. any help would be appreciated. its a EFI 5.0 VL Calais. Thanks

Did you grease the internals of the pump so it will build pressure to suck up oil and prime itself? If not it won't prime, so no pressure. Some pack it with vasoline, though others say that's not the best idea and use other substances. If you head over to the aussiev8 forums there's plenty of info there, and a few guys have thier own contraptions for drawing oil up through the pickup and pump to the filter boss, ensuring it's all primed. Helped me with my VL when it came time to fire it up again. Hopefully it's just a priming thing for you and nothing serious.