novi 1000 nose dive problem

:rofl:i have 1988 speed dencity mustang justput a novi 1000 supercharger on it. as soon asit hits positive pressure it nose dives i thought i was loseing fuel pressure so i put a 255lph walbro pump ,no change any help on this problem would be appericeated thank you

this is no help thanks for nothing figured it out on my own