Hello again everyone it's been a bit! Ok so a little lost on this one! Got an 04 that wouldn't start the guy had rebuilt hand priming pump thats when issue started so he had me put an air dog on it I did that and deleted fuel filter head assembly now I'm getting air somewhere still after it sits it wont start! Just went out this morning and messed with it again got the scanner and bumped FPR up while cranking and boom it started! Runs completely fine and starts right up but the longer it sits the harder it is to start. Any thoughts?