When I installed my TBI onto my previously carb'd 454, I ran rubber fuel injection line ALL THE WAY from the tank to the back of the throttle body. I used a AutoZone inline pump that costs about $67, and can be bought almost anywhere seeing as its a normal stock item. It's mounted on the frame, about 3 ft. from the tank. I didn't even have to pull the tank down! I will look for part numbers and get back to you. Baddog has great advise here too! 
-Dan
-Dan
